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Finding the Fourth Proportional to 342,290.93, 513,422.10 and 89,565.82

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Solution

The fourth proportional to 342,290.93, 513,422.10 and 89,565.82 is: 134,344.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,290.93 : 513,422.10 = 89,565.82 : x
  2. Step 2: Convert to fraction form
    342,290.93/513,422.10 = 89,565.82/x
  3. Step 3: Cross multiply
    342,290.93x = 513,422.10 × 89,565.82
  4. Step 4: Simplify right side
    342,290.93x = 45,985,068,825.51
  5. Step 5: Solve for x
    x = 45,985,068,825.51/342,290.93
  6. Step 6: Final answer
    x = 134,344.98

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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.