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Finding the Fourth Proportional to 152,820.20, 229,230.30 and 40,500.20

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Solution

The fourth proportional to 152,820.20, 229,230.30 and 40,500.20 is: 60,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,820.20 : 229,230.30 = 40,500.20 : x
  2. Step 2: Convert to fraction form
    152,820.20/229,230.30 = 40,500.20/x
  3. Step 3: Cross multiply
    152,820.20x = 229,230.30 × 40,500.20
  4. Step 4: Simplify right side
    152,820.20x = 9,283,872,996.06
  5. Step 5: Solve for x
    x = 9,283,872,996.06/152,820.20
  6. Step 6: Final answer
    x = 60,750.30

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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.