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Finding the Fourth Proportional to 486,167.40, 729,246.30 and 153,743.40

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Solution

The fourth proportional to 486,167.40, 729,246.30 and 153,743.40 is: 230,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,167.40 : 729,246.30 = 153,743.40 : x
  2. Step 2: Convert to fraction form
    486,167.40/729,246.30 = 153,743.40/x
  3. Step 3: Cross multiply
    486,167.40x = 729,246.30 × 153,743.40
  4. Step 4: Simplify right side
    486,167.40x = 112,116,805,599.42
  5. Step 5: Solve for x
    x = 112,116,805,599.42/486,167.40
  6. Step 6: Final answer
    x = 230,613.58

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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.