Home / 283,730.24-391,575.30-211,985.72

Finding the Fourth Proportional to 283,730.24, 391,575.30 and 211,985.72

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Solution

The fourth proportional to 283,730.24, 391,575.30 and 211,985.72 is: 292,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,730.24 : 391,575.30 = 211,985.72 : x
  2. Step 2: Convert to fraction form
    283,730.24/391,575.30 = 211,985.72/x
  3. Step 3: Cross multiply
    283,730.24x = 391,575.30 × 211,985.72
  4. Step 4: Simplify right side
    283,730.24x = 83,008,371,904.72
  5. Step 5: Solve for x
    x = 83,008,371,904.72/283,730.24
  6. Step 6: Final answer
    x = 292,560.89

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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.