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Finding the Fourth Proportional to 362,507.20, 543,760.80 and 344,136.40

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Solution

The fourth proportional to 362,507.20, 543,760.80 and 344,136.40 is: 516,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,507.20 : 543,760.80 = 344,136.40 : x
  2. Step 2: Convert to fraction form
    362,507.20/543,760.80 = 344,136.40/x
  3. Step 3: Cross multiply
    362,507.20x = 543,760.80 × 344,136.40
  4. Step 4: Simplify right side
    362,507.20x = 187,127,884,173.12
  5. Step 5: Solve for x
    x = 187,127,884,173.12/362,507.20
  6. Step 6: Final answer
    x = 516,204.60

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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.