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Finding the Fourth Proportional to 529,470.40, 794,128.80 and 155,454.40

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Solution

The fourth proportional to 529,470.40, 794,128.80 and 155,454.40 is: 233,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,470.40 : 794,128.80 = 155,454.40 : x
  2. Step 2: Convert to fraction form
    529,470.40/794,128.80 = 155,454.40/x
  3. Step 3: Cross multiply
    529,470.40x = 794,128.80 × 155,454.40
  4. Step 4: Simplify right side
    529,470.40x = 123,450,816,126.72
  5. Step 5: Solve for x
    x = 123,450,816,126.72/529,470.40
  6. Step 6: Final answer
    x = 233,159.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.