Home / 283,330.17-391,002.39-154,275.30

Finding the Fourth Proportional to 283,330.17, 391,002.39 and 154,275.30

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Solution

The fourth proportional to 283,330.17, 391,002.39 and 154,275.30 is: 212,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,330.17 : 391,002.39 = 154,275.30 : x
  2. Step 2: Convert to fraction form
    283,330.17/391,002.39 = 154,275.30/x
  3. Step 3: Cross multiply
    283,330.17x = 391,002.39 × 154,275.30
  4. Step 4: Simplify right side
    283,330.17x = 60,322,011,017.97
  5. Step 5: Solve for x
    x = 60,322,011,017.97/283,330.17
  6. Step 6: Final answer
    x = 212,903.59

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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.