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Finding the Fourth Proportional to 511,484.85, 767,229.71 and 156,498.30

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Solution

The fourth proportional to 511,484.85, 767,229.71 and 156,498.30 is: 234,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,484.85 : 767,229.71 = 156,498.30 : x
  2. Step 2: Convert to fraction form
    511,484.85/767,229.71 = 156,498.30/x
  3. Step 3: Cross multiply
    511,484.85x = 767,229.71 × 156,498.30
  4. Step 4: Simplify right side
    511,484.85x = 120,070,144,542.00
  5. Step 5: Solve for x
    x = 120,070,144,542.00/511,484.85
  6. Step 6: Final answer
    x = 234,748.19

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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.