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Finding the Fourth Proportional to 487,596.27, 731,261.35 and 145,959.54

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Solution

The fourth proportional to 487,596.27, 731,261.35 and 145,959.54 is: 218,899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,596.27 : 731,261.35 = 145,959.54 : x
  2. Step 2: Convert to fraction form
    487,596.27/731,261.35 = 145,959.54/x
  3. Step 3: Cross multiply
    487,596.27x = 731,261.35 × 145,959.54
  4. Step 4: Simplify right side
    487,596.27x = 106,734,567,706.00
  5. Step 5: Solve for x
    x = 106,734,567,706.00/487,596.27
  6. Step 6: Final answer
    x = 218,899.47

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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.