Home / 283,140.70-390,734.22-155,816.29

Finding the Fourth Proportional to 283,140.70, 390,734.22 and 155,816.29

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Solution

The fourth proportional to 283,140.70, 390,734.22 and 155,816.29 is: 215,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,140.70 : 390,734.22 = 155,816.29 : x
  2. Step 2: Convert to fraction form
    283,140.70/390,734.22 = 155,816.29/x
  3. Step 3: Cross multiply
    283,140.70x = 390,734.22 × 155,816.29
  4. Step 4: Simplify right side
    283,140.70x = 60,882,756,536.44
  5. Step 5: Solve for x
    x = 60,882,756,536.44/283,140.70
  6. Step 6: Final answer
    x = 215,026.51

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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.