Home / 283,985.32-391,902.78-156,659.80

Finding the Fourth Proportional to 283,985.32, 391,902.78 and 156,659.80

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Solution

The fourth proportional to 283,985.32, 391,902.78 and 156,659.80 is: 216,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,985.32 : 391,902.78 = 156,659.80 : x
  2. Step 2: Convert to fraction form
    283,985.32/391,902.78 = 156,659.80/x
  3. Step 3: Cross multiply
    283,985.32x = 391,902.78 × 156,659.80
  4. Step 4: Simplify right side
    283,985.32x = 61,395,411,134.24
  5. Step 5: Solve for x
    x = 61,395,411,134.24/283,985.32
  6. Step 6: Final answer
    x = 216,192.20

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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.