Home / 283,811.95-391,642.62-156,488.59

Finding the Fourth Proportional to 283,811.95, 391,642.62 and 156,488.59

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Solution

The fourth proportional to 283,811.95, 391,642.62 and 156,488.59 is: 215,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,811.95 : 391,642.62 = 156,488.59 : x
  2. Step 2: Convert to fraction form
    283,811.95/391,642.62 = 156,488.59/x
  3. Step 3: Cross multiply
    283,811.95x = 391,642.62 × 156,488.59
  4. Step 4: Simplify right side
    283,811.95x = 61,287,601,387.71
  5. Step 5: Solve for x
    x = 61,287,601,387.71/283,811.95
  6. Step 6: Final answer
    x = 215,944.40

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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.