Home / 283,412.29-391,126.64-156,087.85

Finding the Fourth Proportional to 283,412.29, 391,126.64 and 156,087.85

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Solution

The fourth proportional to 283,412.29, 391,126.64 and 156,087.85 is: 215,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,412.29 : 391,126.64 = 156,087.85 : x
  2. Step 2: Convert to fraction form
    283,412.29/391,126.64 = 156,087.85/x
  3. Step 3: Cross multiply
    283,412.29x = 391,126.64 × 156,087.85
  4. Step 4: Simplify right side
    283,412.29x = 61,050,116,315.32
  5. Step 5: Solve for x
    x = 61,050,116,315.32/283,412.29
  6. Step 6: Final answer
    x = 215,410.97

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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.