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Finding the Fourth Proportional to 503,484.12, 755,337.15 and 219,220.29

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Solution

The fourth proportional to 503,484.12, 755,337.15 and 219,220.29 is: 328,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,484.12 : 755,337.15 = 219,220.29 : x
  2. Step 2: Convert to fraction form
    503,484.12/755,337.15 = 219,220.29/x
  3. Step 3: Cross multiply
    503,484.12x = 755,337.15 × 219,220.29
  4. Step 4: Simplify right side
    503,484.12x = 165,585,229,070.77
  5. Step 5: Solve for x
    x = 165,585,229,070.77/503,484.12
  6. Step 6: Final answer
    x = 328,878.75

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1.5x scale

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.