Home / 283,199.20-390,811.89-155,872.06

Finding the Fourth Proportional to 283,199.20, 390,811.89 and 155,872.06

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Solution

The fourth proportional to 283,199.20, 390,811.89 and 155,872.06 is: 215,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,199.20 : 390,811.89 = 155,872.06 : x
  2. Step 2: Convert to fraction form
    283,199.20/390,811.89 = 155,872.06/x
  3. Step 3: Cross multiply
    283,199.20x = 390,811.89 × 155,872.06
  4. Step 4: Simplify right side
    283,199.20x = 60,916,654,366.79
  5. Step 5: Solve for x
    x = 60,916,654,366.79/283,199.20
  6. Step 6: Final answer
    x = 215,101.79

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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.