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Finding the Fourth Proportional to 401,505.32, 554,123.63 and 240,360.32

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Solution

The fourth proportional to 401,505.32, 554,123.63 and 240,360.32 is: 331,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,505.32 : 554,123.63 = 240,360.32 : x
  2. Step 2: Convert to fraction form
    401,505.32/554,123.63 = 240,360.32/x
  3. Step 3: Cross multiply
    401,505.32x = 554,123.63 × 240,360.32
  4. Step 4: Simplify right side
    401,505.32x = 133,189,329,053.94
  5. Step 5: Solve for x
    x = 133,189,329,053.94/401,505.32
  6. Step 6: Final answer
    x = 331,724.95

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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.