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Finding the Fourth Proportional to 576,139.60, 864,468.60 and 202,430.80

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Solution

The fourth proportional to 576,139.60, 864,468.60 and 202,430.80 is: 303,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,139.60 : 864,468.60 = 202,430.80 : x
  2. Step 2: Convert to fraction form
    576,139.60/864,468.60 = 202,430.80/x
  3. Step 3: Cross multiply
    576,139.60x = 864,468.60 × 202,430.80
  4. Step 4: Simplify right side
    576,139.60x = 174,995,070,272.88
  5. Step 5: Solve for x
    x = 174,995,070,272.88/576,139.60
  6. Step 6: Final answer
    x = 303,737.27

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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.