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Finding the Fourth Proportional to 155,988.30, 234,025.65 and 103,500.30

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Solution

The fourth proportional to 155,988.30, 234,025.65 and 103,500.30 is: 155,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,988.30 : 234,025.65 = 103,500.30 : x
  2. Step 2: Convert to fraction form
    155,988.30/234,025.65 = 103,500.30/x
  3. Step 3: Cross multiply
    155,988.30x = 234,025.65 × 103,500.30
  4. Step 4: Simplify right side
    155,988.30x = 24,221,724,982.70
  5. Step 5: Solve for x
    x = 24,221,724,982.70/155,988.30
  6. Step 6: Final answer
    x = 155,279.11

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1.5x scale

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.