Home / 283,604.06-391,381.98-156,287.90

Finding the Fourth Proportional to 283,604.06, 391,381.98 and 156,287.90

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Solution

The fourth proportional to 283,604.06, 391,381.98 and 156,287.90 is: 215,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,604.06 : 391,381.98 = 156,287.90 : x
  2. Step 2: Convert to fraction form
    283,604.06/391,381.98 = 156,287.90/x
  3. Step 3: Cross multiply
    283,604.06x = 391,381.98 × 156,287.90
  4. Step 4: Simplify right side
    283,604.06x = 61,168,267,752.04
  5. Step 5: Solve for x
    x = 61,168,267,752.04/283,604.06
  6. Step 6: Final answer
    x = 215,681.92

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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.