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Finding the Fourth Proportional to 445,639.22, 614,983.13 and 254,652.15

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Solution

The fourth proportional to 445,639.22, 614,983.13 and 254,652.15 is: 351,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,639.22 : 614,983.13 = 254,652.15 : x
  2. Step 2: Convert to fraction form
    445,639.22/614,983.13 = 254,652.15/x
  3. Step 3: Cross multiply
    445,639.22x = 614,983.13 × 254,652.15
  4. Step 4: Simplify right side
    445,639.22x = 156,606,779,688.52
  5. Step 5: Solve for x
    x = 156,606,779,688.52/445,639.22
  6. Step 6: Final answer
    x = 351,420.55

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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.