Home / 514,631.20-771,946.80-140,654.20

Finding the Fourth Proportional to 514,631.20, 771,946.80 and 140,654.20

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Solution

The fourth proportional to 514,631.20, 771,946.80 and 140,654.20 is: 210,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,631.20 : 771,946.80 = 140,654.20 : x
  2. Step 2: Convert to fraction form
    514,631.20/771,946.80 = 140,654.20/x
  3. Step 3: Cross multiply
    514,631.20x = 771,946.80 × 140,654.20
  4. Step 4: Simplify right side
    514,631.20x = 108,577,559,596.56
  5. Step 5: Solve for x
    x = 108,577,559,596.56/514,631.20
  6. Step 6: Final answer
    x = 210,981.30

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Similar ratio
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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.