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Finding the Fourth Proportional to 173,898.60, 260,502.30 and 99,940.20

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Solution

The fourth proportional to 173,898.60, 260,502.30 and 99,940.20 is: 149,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,898.60 : 260,502.30 = 99,940.20 : x
  2. Step 2: Convert to fraction form
    173,898.60/260,502.30 = 99,940.20/x
  3. Step 3: Cross multiply
    173,898.60x = 260,502.30 × 99,940.20
  4. Step 4: Simplify right side
    173,898.60x = 26,034,651,962.46
  5. Step 5: Solve for x
    x = 26,034,651,962.46/173,898.60
  6. Step 6: Final answer
    x = 149,711.68

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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.