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Finding the Fourth Proportional to 342,443.82, 513,650.97 and 89,718.75

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Solution

The fourth proportional to 342,443.82, 513,650.97 and 89,718.75 is: 134,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,443.82 : 513,650.97 = 89,718.75 : x
  2. Step 2: Convert to fraction form
    342,443.82/513,650.97 = 89,718.75/x
  3. Step 3: Cross multiply
    342,443.82x = 513,650.97 × 89,718.75
  4. Step 4: Simplify right side
    342,443.82x = 46,084,122,964.69
  5. Step 5: Solve for x
    x = 46,084,122,964.69/342,443.82
  6. Step 6: Final answer
    x = 134,574.26

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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.