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Finding the Fourth Proportional to 368,755.61, 508,892.36 and 207,616.57

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Solution

The fourth proportional to 368,755.61, 508,892.36 and 207,616.57 is: 286,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,755.61 : 508,892.36 = 207,616.57 : x
  2. Step 2: Convert to fraction form
    368,755.61/508,892.36 = 207,616.57/x
  3. Step 3: Cross multiply
    368,755.61x = 508,892.36 × 207,616.57
  4. Step 4: Simplify right side
    368,755.61x = 105,654,483,972.09
  5. Step 5: Solve for x
    x = 105,654,483,972.09/368,755.61
  6. Step 6: Final answer
    x = 286,516.28

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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.