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Finding the Fourth Proportional to 153,988.40, 230,545.20 and 153,988.40

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Solution

The fourth proportional to 153,988.40, 230,545.20 and 153,988.40 is: 230,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,988.40 : 230,545.20 = 153,988.40 : x
  2. Step 2: Convert to fraction form
    153,988.40/230,545.20 = 153,988.40/x
  3. Step 3: Cross multiply
    153,988.40x = 230,545.20 × 153,988.40
  4. Step 4: Simplify right side
    153,988.40x = 35,501,286,475.68
  5. Step 5: Solve for x
    x = 35,501,286,475.68/153,988.40
  6. Step 6: Final answer
    x = 230,545.20

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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.