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Finding the Fourth Proportional to 305,227.40, 457,841.10 and 155,928.20

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Solution

The fourth proportional to 305,227.40, 457,841.10 and 155,928.20 is: 233,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,227.40 : 457,841.10 = 155,928.20 : x
  2. Step 2: Convert to fraction form
    305,227.40/457,841.10 = 155,928.20/x
  3. Step 3: Cross multiply
    305,227.40x = 457,841.10 × 155,928.20
  4. Step 4: Simplify right side
    305,227.40x = 71,390,338,609.02
  5. Step 5: Solve for x
    x = 71,390,338,609.02/305,227.40
  6. Step 6: Final answer
    x = 233,892.30

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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.