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Finding the Fourth Proportional to 368,634.66, 508,614.03 and 207,480.30

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Solution

The fourth proportional to 368,634.66, 508,614.03 and 207,480.30 is: 286,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,634.66 : 508,614.03 = 207,480.30 : x
  2. Step 2: Convert to fraction form
    368,634.66/508,614.03 = 207,480.30/x
  3. Step 3: Cross multiply
    368,634.66x = 508,614.03 × 207,480.30
  4. Step 4: Simplify right side
    368,634.66x = 105,527,391,528.61
  5. Step 5: Solve for x
    x = 105,527,391,528.61/368,634.66
  6. Step 6: Final answer
    x = 286,265.52

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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.