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Finding the Fourth Proportional to 444.19, 612.15 and 365.05

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Solution

The fourth proportional to 444.19, 612.15 and 365.05 is: 503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.19 : 612.15 = 365.05 : x
  2. Step 2: Convert to fraction form
    444.19/612.15 = 365.05/x
  3. Step 3: Cross multiply
    444.19x = 612.15 × 365.05
  4. Step 4: Simplify right side
    444.19x = 223,465.36
  5. Step 5: Solve for x
    x = 223,465.36/444.19
  6. Step 6: Final answer
    x = 503.09

Related Problems

Find fourth proportional to 222.10, 306.08 and 182.53
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.