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Finding the Fourth Proportional to 484,302.80, 726,454.20 and 147,342.80

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Solution

The fourth proportional to 484,302.80, 726,454.20 and 147,342.80 is: 221,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,302.80 : 726,454.20 = 147,342.80 : x
  2. Step 2: Convert to fraction form
    484,302.80/726,454.20 = 147,342.80/x
  3. Step 3: Cross multiply
    484,302.80x = 726,454.20 × 147,342.80
  4. Step 4: Simplify right side
    484,302.80x = 107,037,795,899.76
  5. Step 5: Solve for x
    x = 107,037,795,899.76/484,302.80
  6. Step 6: Final answer
    x = 221,014.20

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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.