Home / 283,731.03-391,549.68-156,403.89

Finding the Fourth Proportional to 283,731.03, 391,549.68 and 156,403.89

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Solution

The fourth proportional to 283,731.03, 391,549.68 and 156,403.89 is: 215,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,731.03 : 391,549.68 = 156,403.89 : x
  2. Step 2: Convert to fraction form
    283,731.03/391,549.68 = 156,403.89/x
  3. Step 3: Cross multiply
    283,731.03x = 391,549.68 × 156,403.89
  4. Step 4: Simplify right side
    283,731.03x = 61,239,893,080.26
  5. Step 5: Solve for x
    x = 61,239,893,080.26/283,731.03
  6. Step 6: Final answer
    x = 215,837.84

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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.