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Finding the Fourth Proportional to 243,407.54, 365,142.08 and 83,440.13

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Solution

The fourth proportional to 243,407.54, 365,142.08 and 83,440.13 is: 125,170.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,407.54 : 365,142.08 = 83,440.13 : x
  2. Step 2: Convert to fraction form
    243,407.54/365,142.08 = 83,440.13/x
  3. Step 3: Cross multiply
    243,407.54x = 365,142.08 × 83,440.13
  4. Step 4: Simplify right side
    243,407.54x = 30,467,501,006.56
  5. Step 5: Solve for x
    x = 30,467,501,006.56/243,407.54
  6. Step 6: Final answer
    x = 125,170.74

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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.