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Finding the Fourth Proportional to 147,499.20, 221,119.20 and 88,358.40

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Solution

The fourth proportional to 147,499.20, 221,119.20 and 88,358.40 is: 132,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,499.20 : 221,119.20 = 88,358.40 : x
  2. Step 2: Convert to fraction form
    147,499.20/221,119.20 = 88,358.40/x
  3. Step 3: Cross multiply
    147,499.20x = 221,119.20 × 88,358.40
  4. Step 4: Simplify right side
    147,499.20x = 19,537,738,721.28
  5. Step 5: Solve for x
    x = 19,537,738,721.28/147,499.20
  6. Step 6: Final answer
    x = 132,459.96

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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.