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Finding the Fourth Proportional to 531,092.80, 796,639.20 and 131,730.40

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Solution

The fourth proportional to 531,092.80, 796,639.20 and 131,730.40 is: 197,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,092.80 : 796,639.20 = 131,730.40 : x
  2. Step 2: Convert to fraction form
    531,092.80/796,639.20 = 131,730.40/x
  3. Step 3: Cross multiply
    531,092.80x = 796,639.20 × 131,730.40
  4. Step 4: Simplify right side
    531,092.80x = 104,941,600,471.68
  5. Step 5: Solve for x
    x = 104,941,600,471.68/531,092.80
  6. Step 6: Final answer
    x = 197,595.60

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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.