Home / 375,187.20-517,758.30-205,421.28

Finding the Fourth Proportional to 375,187.20, 517,758.30 and 205,421.28

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Solution

The fourth proportional to 375,187.20, 517,758.30 and 205,421.28 is: 283,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,187.20 : 517,758.30 = 205,421.28 : x
  2. Step 2: Convert to fraction form
    375,187.20/517,758.30 = 205,421.28/x
  3. Step 3: Cross multiply
    375,187.20x = 517,758.30 × 205,421.28
  4. Step 4: Simplify right side
    375,187.20x = 106,358,572,716.62
  5. Step 5: Solve for x
    x = 106,358,572,716.62/375,187.20
  6. Step 6: Final answer
    x = 283,481.35

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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.