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Finding the Fourth Proportional to 436,254.75, 654,390.33 and 136,728.70

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Solution

The fourth proportional to 436,254.75, 654,390.33 and 136,728.70 is: 205,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,254.75 : 654,390.33 = 136,728.70 : x
  2. Step 2: Convert to fraction form
    436,254.75/654,390.33 = 136,728.70/x
  3. Step 3: Cross multiply
    436,254.75x = 654,390.33 × 136,728.70
  4. Step 4: Simplify right side
    436,254.75x = 89,473,939,113.47
  5. Step 5: Solve for x
    x = 89,473,939,113.47/436,254.75
  6. Step 6: Final answer
    x = 205,095.62

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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.