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Finding the Fourth Proportional to 484,724.01, 727,195.05 and 147,798.72

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Solution

The fourth proportional to 484,724.01, 727,195.05 and 147,798.72 is: 221,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,724.01 : 727,195.05 = 147,798.72 : x
  2. Step 2: Convert to fraction form
    484,724.01/727,195.05 = 147,798.72/x
  3. Step 3: Cross multiply
    484,724.01x = 727,195.05 × 147,798.72
  4. Step 4: Simplify right side
    484,724.01x = 107,478,497,580.34
  5. Step 5: Solve for x
    x = 107,478,497,580.34/484,724.01
  6. Step 6: Final answer
    x = 221,731.33

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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.