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Finding the Fourth Proportional to 502,735.95, 753,679.08 and 218,211.30

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Solution

The fourth proportional to 502,735.95, 753,679.08 and 218,211.30 is: 327,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,735.95 : 753,679.08 = 218,211.30 : x
  2. Step 2: Convert to fraction form
    502,735.95/753,679.08 = 218,211.30/x
  3. Step 3: Cross multiply
    502,735.95x = 753,679.08 × 218,211.30
  4. Step 4: Simplify right side
    502,735.95x = 164,461,291,829.60
  5. Step 5: Solve for x
    x = 164,461,291,829.60/502,735.95
  6. Step 6: Final answer
    x = 327,132.55

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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.