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Finding the Fourth Proportional to 268,510.20, 370,531.40 and 147,656.58

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Solution

The fourth proportional to 268,510.20, 370,531.40 and 147,656.58 is: 203,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,510.20 : 370,531.40 = 147,656.58 : x
  2. Step 2: Convert to fraction form
    268,510.20/370,531.40 = 147,656.58/x
  3. Step 3: Cross multiply
    268,510.20x = 370,531.40 × 147,656.58
  4. Step 4: Simplify right side
    268,510.20x = 54,711,398,568.33
  5. Step 5: Solve for x
    x = 54,711,398,568.33/268,510.20
  6. Step 6: Final answer
    x = 203,759.11

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1.5x scale

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.