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Finding the Fourth Proportional to 160,214.40, 240,256.80 and 54,979.20

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Solution

The fourth proportional to 160,214.40, 240,256.80 and 54,979.20 is: 82,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,214.40 : 240,256.80 = 54,979.20 : x
  2. Step 2: Convert to fraction form
    160,214.40/240,256.80 = 54,979.20/x
  3. Step 3: Cross multiply
    160,214.40x = 240,256.80 × 54,979.20
  4. Step 4: Simplify right side
    160,214.40x = 13,209,126,658.56
  5. Step 5: Solve for x
    x = 13,209,126,658.56/160,214.40
  6. Step 6: Final answer
    x = 82,446.56

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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.