Home / 283,365.03-391,035.20-156,041.31

Finding the Fourth Proportional to 283,365.03, 391,035.20 and 156,041.31

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Solution

The fourth proportional to 283,365.03, 391,035.20 and 156,041.31 is: 215,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,365.03 : 391,035.20 = 156,041.31 : x
  2. Step 2: Convert to fraction form
    283,365.03/391,035.20 = 156,041.31/x
  3. Step 3: Cross multiply
    283,365.03x = 391,035.20 × 156,041.31
  4. Step 4: Simplify right side
    283,365.03x = 61,017,644,083.91
  5. Step 5: Solve for x
    x = 61,017,644,083.91/283,365.03
  6. Step 6: Final answer
    x = 215,332.30

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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.