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Finding the Fourth Proportional to 412,323.40, 618,125.10 and 159,776.20

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Solution

The fourth proportional to 412,323.40, 618,125.10 and 159,776.20 is: 239,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,323.40 : 618,125.10 = 159,776.20 : x
  2. Step 2: Convert to fraction form
    412,323.40/618,125.10 = 159,776.20/x
  3. Step 3: Cross multiply
    412,323.40x = 618,125.10 × 159,776.20
  4. Step 4: Simplify right side
    412,323.40x = 98,761,679,602.62
  5. Step 5: Solve for x
    x = 98,761,679,602.62/412,323.40
  6. Step 6: Final answer
    x = 239,524.80

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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.