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Finding the Fourth Proportional to 243,807.68, 365,620.56 and 83,838.35

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Solution

The fourth proportional to 243,807.68, 365,620.56 and 83,838.35 is: 125,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,807.68 : 365,620.56 = 83,838.35 : x
  2. Step 2: Convert to fraction form
    243,807.68/365,620.56 = 83,838.35/x
  3. Step 3: Cross multiply
    243,807.68x = 365,620.56 × 83,838.35
  4. Step 4: Simplify right side
    243,807.68x = 30,653,024,476.48
  5. Step 5: Solve for x
    x = 30,653,024,476.48/243,807.68
  6. Step 6: Final answer
    x = 125,726.25

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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.