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Finding the Fourth Proportional to 146,542.40, 219,554.40 and 137,211.20

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Solution

The fourth proportional to 146,542.40, 219,554.40 and 137,211.20 is: 205,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,542.40 : 219,554.40 = 137,211.20 : x
  2. Step 2: Convert to fraction form
    146,542.40/219,554.40 = 137,211.20/x
  3. Step 3: Cross multiply
    146,542.40x = 219,554.40 × 137,211.20
  4. Step 4: Simplify right side
    146,542.40x = 30,125,322,689.28
  5. Step 5: Solve for x
    x = 30,125,322,689.28/146,542.40
  6. Step 6: Final answer
    x = 205,574.10

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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.