Home / 283,646.52-391,433.04-156,319.20

Finding the Fourth Proportional to 283,646.52, 391,433.04 and 156,319.20

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Solution

The fourth proportional to 283,646.52, 391,433.04 and 156,319.20 is: 215,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,646.52 : 391,433.04 = 156,319.20 : x
  2. Step 2: Convert to fraction form
    283,646.52/391,433.04 = 156,319.20/x
  3. Step 3: Cross multiply
    283,646.52x = 391,433.04 × 156,319.20
  4. Step 4: Simplify right side
    283,646.52x = 61,188,499,666.37
  5. Step 5: Solve for x
    x = 61,188,499,666.37/283,646.52
  6. Step 6: Final answer
    x = 215,720.96

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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.