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Finding the Fourth Proportional to 340,426.62, 510,707.59 and 115,726.72

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Solution

The fourth proportional to 340,426.62, 510,707.59 and 115,726.72 is: 173,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,426.62 : 510,707.59 = 115,726.72 : x
  2. Step 2: Convert to fraction form
    340,426.62/510,707.59 = 115,726.72/x
  3. Step 3: Cross multiply
    340,426.62x = 510,707.59 × 115,726.72
  4. Step 4: Simplify right side
    340,426.62x = 59,102,514,269.80
  5. Step 5: Solve for x
    x = 59,102,514,269.80/340,426.62
  6. Step 6: Final answer
    x = 173,613.08

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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.