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Finding the Fourth Proportional to 272,049.40, 408,074.10 and 146,078.20

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Solution

The fourth proportional to 272,049.40, 408,074.10 and 146,078.20 is: 219,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,049.40 : 408,074.10 = 146,078.20 : x
  2. Step 2: Convert to fraction form
    272,049.40/408,074.10 = 146,078.20/x
  3. Step 3: Cross multiply
    272,049.40x = 408,074.10 × 146,078.20
  4. Step 4: Simplify right side
    272,049.40x = 59,610,729,994.62
  5. Step 5: Solve for x
    x = 59,610,729,994.62/272,049.40
  6. Step 6: Final answer
    x = 219,117.30

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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.