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Finding the Fourth Proportional to 153,609.30, 215,675.10 and 153,609.30

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Solution

The fourth proportional to 153,609.30, 215,675.10 and 153,609.30 is: 215,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609.30 : 215,675.10 = 153,609.30 : x
  2. Step 2: Convert to fraction form
    153,609.30/215,675.10 = 153,609.30/x
  3. Step 3: Cross multiply
    153,609.30x = 215,675.10 × 153,609.30
  4. Step 4: Simplify right side
    153,609.30x = 33,129,701,138.43
  5. Step 5: Solve for x
    x = 33,129,701,138.43/153,609.30
  6. Step 6: Final answer
    x = 215,675.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.