Home / 229,433.18-316,646.98-138,789.79

Finding the Fourth Proportional to 229,433.18, 316,646.98 and 138,789.79

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Solution

The fourth proportional to 229,433.18, 316,646.98 and 138,789.79 is: 191,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,433.18 : 316,646.98 = 138,789.79 : x
  2. Step 2: Convert to fraction form
    229,433.18/316,646.98 = 138,789.79/x
  3. Step 3: Cross multiply
    229,433.18x = 316,646.98 × 138,789.79
  4. Step 4: Simplify right side
    229,433.18x = 43,947,367,511.36
  5. Step 5: Solve for x
    x = 43,947,367,511.36/229,433.18
  6. Step 6: Final answer
    x = 191,547.57

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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.