Home / 283,402.40-391,092.72-156,075.26

Finding the Fourth Proportional to 283,402.40, 391,092.72 and 156,075.26

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Solution

The fourth proportional to 283,402.40, 391,092.72 and 156,075.26 is: 215,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,402.40 : 391,092.72 = 156,075.26 : x
  2. Step 2: Convert to fraction form
    283,402.40/391,092.72 = 156,075.26/x
  3. Step 3: Cross multiply
    283,402.40x = 391,092.72 × 156,075.26
  4. Step 4: Simplify right side
    283,402.40x = 61,039,897,958.11
  5. Step 5: Solve for x
    x = 61,039,897,958.11/283,402.40
  6. Step 6: Final answer
    x = 215,382.43

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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.