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Finding the Fourth Proportional to 608.77, 840.13 and 360.14

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Solution

The fourth proportional to 608.77, 840.13 and 360.14 is: 497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.77 : 840.13 = 360.14 : x
  2. Step 2: Convert to fraction form
    608.77/840.13 = 360.14/x
  3. Step 3: Cross multiply
    608.77x = 840.13 × 360.14
  4. Step 4: Simplify right side
    608.77x = 302,559.32
  5. Step 5: Solve for x
    x = 302,559.32/608.77
  6. Step 6: Final answer
    x = 497.00

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Find fourth proportional to 304.38, 420.06 and 180.07
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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.