Home / 420,357.27-580,107.02-229,381.14

Finding the Fourth Proportional to 420,357.27, 580,107.02 and 229,381.14

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Solution

The fourth proportional to 420,357.27, 580,107.02 and 229,381.14 is: 316,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,357.27 : 580,107.02 = 229,381.14 : x
  2. Step 2: Convert to fraction form
    420,357.27/580,107.02 = 229,381.14/x
  3. Step 3: Cross multiply
    420,357.27x = 580,107.02 × 229,381.14
  4. Step 4: Simplify right side
    420,357.27x = 133,065,607,242.52
  5. Step 5: Solve for x
    x = 133,065,607,242.52/420,357.27
  6. Step 6: Final answer
    x = 316,553.60

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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.