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Finding the Fourth Proportional to 368,429.92, 508,435.38 and 207,287.71

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Solution

The fourth proportional to 368,429.92, 508,435.38 and 207,287.71 is: 286,058.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,429.92 : 508,435.38 = 207,287.71 : x
  2. Step 2: Convert to fraction form
    368,429.92/508,435.38 = 207,287.71/x
  3. Step 3: Cross multiply
    368,429.92x = 508,435.38 × 207,287.71
  4. Step 4: Simplify right side
    368,429.92x = 105,392,404,332.09
  5. Step 5: Solve for x
    x = 105,392,404,332.09/368,429.92
  6. Step 6: Final answer
    x = 286,058.21

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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.