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Finding the Fourth Proportional to 514,830.60, 772,318.80 and 159,807.60

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Solution

The fourth proportional to 514,830.60, 772,318.80 and 159,807.60 is: 239,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,830.60 : 772,318.80 = 159,807.60 : x
  2. Step 2: Convert to fraction form
    514,830.60/772,318.80 = 159,807.60/x
  3. Step 3: Cross multiply
    514,830.60x = 772,318.80 × 159,807.60
  4. Step 4: Simplify right side
    514,830.60x = 123,422,413,862.88
  5. Step 5: Solve for x
    x = 123,422,413,862.88/514,830.60
  6. Step 6: Final answer
    x = 239,734.03

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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.