Home / 281,221.46-388,084.59-152,159.54

Finding the Fourth Proportional to 281,221.46, 388,084.59 and 152,159.54

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Solution

The fourth proportional to 281,221.46, 388,084.59 and 152,159.54 is: 209,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,221.46 : 388,084.59 = 152,159.54 : x
  2. Step 2: Convert to fraction form
    281,221.46/388,084.59 = 152,159.54/x
  3. Step 3: Cross multiply
    281,221.46x = 388,084.59 × 152,159.54
  4. Step 4: Simplify right side
    281,221.46x = 59,050,772,695.49
  5. Step 5: Solve for x
    x = 59,050,772,695.49/281,221.46
  6. Step 6: Final answer
    x = 209,979.61

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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.