Home / 340,291.28-510,397.97-90,992.72

Finding the Fourth Proportional to 340,291.28, 510,397.97 and 90,992.72

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Solution

The fourth proportional to 340,291.28, 510,397.97 and 90,992.72 is: 136,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,291.28 : 510,397.97 = 90,992.72 : x
  2. Step 2: Convert to fraction form
    340,291.28/510,397.97 = 90,992.72/x
  3. Step 3: Cross multiply
    340,291.28x = 510,397.97 × 90,992.72
  4. Step 4: Simplify right side
    340,291.28x = 46,442,496,565.83
  5. Step 5: Solve for x
    x = 46,442,496,565.83/340,291.28
  6. Step 6: Final answer
    x = 136,478.66

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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.