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Finding the Fourth Proportional to 402,483.86, 555,395.19 and 232,728.92

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Solution

The fourth proportional to 402,483.86, 555,395.19 and 232,728.92 is: 321,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,483.86 : 555,395.19 = 232,728.92 : x
  2. Step 2: Convert to fraction form
    402,483.86/555,395.19 = 232,728.92/x
  3. Step 3: Cross multiply
    402,483.86x = 555,395.19 × 232,728.92
  4. Step 4: Simplify right side
    402,483.86x = 129,256,522,741.90
  5. Step 5: Solve for x
    x = 129,256,522,741.90/402,483.86
  6. Step 6: Final answer
    x = 321,147.10

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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.