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Finding the Fourth Proportional to 243,677.40, 365,516.10 and 172,818.60

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Solution

The fourth proportional to 243,677.40, 365,516.10 and 172,818.60 is: 259,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,677.40 : 365,516.10 = 172,818.60 : x
  2. Step 2: Convert to fraction form
    243,677.40/365,516.10 = 172,818.60/x
  3. Step 3: Cross multiply
    243,677.40x = 365,516.10 × 172,818.60
  4. Step 4: Simplify right side
    243,677.40x = 63,167,980,679.46
  5. Step 5: Solve for x
    x = 63,167,980,679.46/243,677.40
  6. Step 6: Final answer
    x = 259,227.90

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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.