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Finding the Fourth Proportional to 484,812.80, 727,219.20 and 147,852.80

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Solution

The fourth proportional to 484,812.80, 727,219.20 and 147,852.80 is: 221,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,812.80 : 727,219.20 = 147,852.80 : x
  2. Step 2: Convert to fraction form
    484,812.80/727,219.20 = 147,852.80/x
  3. Step 3: Cross multiply
    484,812.80x = 727,219.20 × 147,852.80
  4. Step 4: Simplify right side
    484,812.80x = 107,521,394,933.76
  5. Step 5: Solve for x
    x = 107,521,394,933.76/484,812.80
  6. Step 6: Final answer
    x = 221,779.20

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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.