Home / 281,158.39-387,988.95-160,338.61

Finding the Fourth Proportional to 281,158.39, 387,988.95 and 160,338.61

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Solution

The fourth proportional to 281,158.39, 387,988.95 and 160,338.61 is: 221,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,158.39 : 387,988.95 = 160,338.61 : x
  2. Step 2: Convert to fraction form
    281,158.39/387,988.95 = 160,338.61/x
  3. Step 3: Cross multiply
    281,158.39x = 387,988.95 × 160,338.61
  4. Step 4: Simplify right side
    281,158.39x = 62,209,608,938.36
  5. Step 5: Solve for x
    x = 62,209,608,938.36/281,158.39
  6. Step 6: Final answer
    x = 221,261.79

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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.