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Finding the Fourth Proportional to 478,498.14, 717,747.18 and 141,512.52

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Solution

The fourth proportional to 478,498.14, 717,747.18 and 141,512.52 is: 212,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,498.14 : 717,747.18 = 141,512.52 : x
  2. Step 2: Convert to fraction form
    478,498.14/717,747.18 = 141,512.52/x
  3. Step 3: Cross multiply
    478,498.14x = 717,747.18 × 141,512.52
  4. Step 4: Simplify right side
    478,498.14x = 101,570,212,164.69
  5. Step 5: Solve for x
    x = 101,570,212,164.69/478,498.14
  6. Step 6: Final answer
    x = 212,268.77

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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.