Home / 283,603.43-391,367.70-154,543.03

Finding the Fourth Proportional to 283,603.43, 391,367.70 and 154,543.03

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Solution

The fourth proportional to 283,603.43, 391,367.70 and 154,543.03 is: 213,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,603.43 : 391,367.70 = 154,543.03 : x
  2. Step 2: Convert to fraction form
    283,603.43/391,367.70 = 154,543.03/x
  3. Step 3: Cross multiply
    283,603.43x = 391,367.70 × 154,543.03
  4. Step 4: Simplify right side
    283,603.43x = 60,483,149,223.71
  5. Step 5: Solve for x
    x = 60,483,149,223.71/283,603.43
  6. Step 6: Final answer
    x = 213,266.63

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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.