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Finding the Fourth Proportional to 160,487.70, 240,622.20 and 76,288.20

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Solution

The fourth proportional to 160,487.70, 240,622.20 and 76,288.20 is: 114,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,487.70 : 240,622.20 = 76,288.20 : x
  2. Step 2: Convert to fraction form
    160,487.70/240,622.20 = 76,288.20/x
  3. Step 3: Cross multiply
    160,487.70x = 240,622.20 × 76,288.20
  4. Step 4: Simplify right side
    160,487.70x = 18,356,634,518.04
  5. Step 5: Solve for x
    x = 18,356,634,518.04/160,487.70
  6. Step 6: Final answer
    x = 114,380.32

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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.