Home / 283,609.50-391,382.40-156,282.36

Finding the Fourth Proportional to 283,609.50, 391,382.40 and 156,282.36

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Solution

The fourth proportional to 283,609.50, 391,382.40 and 156,282.36 is: 215,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,609.50 : 391,382.40 = 156,282.36 : x
  2. Step 2: Convert to fraction form
    283,609.50/391,382.40 = 156,282.36/x
  3. Step 3: Cross multiply
    283,609.50x = 391,382.40 × 156,282.36
  4. Step 4: Simplify right side
    283,609.50x = 61,166,165,134.46
  5. Step 5: Solve for x
    x = 61,166,165,134.46/283,609.50
  6. Step 6: Final answer
    x = 215,670.37

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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.