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Finding the Fourth Proportional to 529,191.68, 730,295.88 and 299,750

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Solution

The fourth proportional to 529,191.68, 730,295.88 and 299,750 is: 413,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,191.68 : 730,295.88 = 299,750 : x
  2. Step 2: Convert to fraction form
    529,191.68/730,295.88 = 299,750/x
  3. Step 3: Cross multiply
    529,191.68x = 730,295.88 × 299,750
  4. Step 4: Simplify right side
    529,191.68x = 218,906,190,030
  5. Step 5: Solve for x
    x = 218,906,190,030/529,191.68
  6. Step 6: Final answer
    x = 413,661.44

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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.