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Finding the Fourth Proportional to 624.15, 936.14 and 259.02

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Solution

The fourth proportional to 624.15, 936.14 and 259.02 is: 388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.15 : 936.14 = 259.02 : x
  2. Step 2: Convert to fraction form
    624.15/936.14 = 259.02/x
  3. Step 3: Cross multiply
    624.15x = 936.14 × 259.02
  4. Step 4: Simplify right side
    624.15x = 242,477.69
  5. Step 5: Solve for x
    x = 242,477.69/624.15
  6. Step 6: Final answer
    x = 388.49

Related Problems

Find fourth proportional to 312.08, 468.07 and 129.51
Half scale
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Double scale
Find fourth proportional to 625.15, 937.63 and 260.02
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.