Home / 283,722.51-391,539.75-156,402.66

Finding the Fourth Proportional to 283,722.51, 391,539.75 and 156,402.66

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Solution

The fourth proportional to 283,722.51, 391,539.75 and 156,402.66 is: 215,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,722.51 : 391,539.75 = 156,402.66 : x
  2. Step 2: Convert to fraction form
    283,722.51/391,539.75 = 156,402.66/x
  3. Step 3: Cross multiply
    283,722.51x = 391,539.75 × 156,402.66
  4. Step 4: Simplify right side
    283,722.51x = 61,237,858,395.74
  5. Step 5: Solve for x
    x = 61,237,858,395.74/283,722.51
  6. Step 6: Final answer
    x = 215,837.15

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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.