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Finding the Fourth Proportional to 361,816.80, 542,206.80 and 266,301.60

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Solution

The fourth proportional to 361,816.80, 542,206.80 and 266,301.60 is: 399,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,816.80 : 542,206.80 = 266,301.60 : x
  2. Step 2: Convert to fraction form
    361,816.80/542,206.80 = 266,301.60/x
  3. Step 3: Cross multiply
    361,816.80x = 542,206.80 × 266,301.60
  4. Step 4: Simplify right side
    361,816.80x = 144,390,538,370.88
  5. Step 5: Solve for x
    x = 144,390,538,370.88/361,816.80
  6. Step 6: Final answer
    x = 399,070.85

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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.