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Finding the Fourth Proportional to 268,510.83, 370,532.25 and 147,657.21

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Solution

The fourth proportional to 268,510.83, 370,532.25 and 147,657.21 is: 203,759.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,510.83 : 370,532.25 = 147,657.21 : x
  2. Step 2: Convert to fraction form
    268,510.83/370,532.25 = 147,657.21/x
  3. Step 3: Cross multiply
    268,510.83x = 370,532.25 × 147,657.21
  4. Step 4: Simplify right side
    268,510.83x = 54,711,756,860.53
  5. Step 5: Solve for x
    x = 54,711,756,860.53/268,510.83
  6. Step 6: Final answer
    x = 203,759.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.