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Finding the Fourth Proportional to 342,596.43, 513,879.45 and 89,871.17

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Solution

The fourth proportional to 342,596.43, 513,879.45 and 89,871.17 is: 134,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,596.43 : 513,879.45 = 89,871.17 : x
  2. Step 2: Convert to fraction form
    342,596.43/513,879.45 = 89,871.17/x
  3. Step 3: Cross multiply
    342,596.43x = 513,879.45 × 89,871.17
  4. Step 4: Simplify right side
    342,596.43x = 46,182,944,841.06
  5. Step 5: Solve for x
    x = 46,182,944,841.06/342,596.43
  6. Step 6: Final answer
    x = 134,802.76

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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.