Home / 208,425.88-287,595.02-121,230.29

Finding the Fourth Proportional to 208,425.88, 287,595.02 and 121,230.29

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Solution

The fourth proportional to 208,425.88, 287,595.02 and 121,230.29 is: 167,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,425.88 : 287,595.02 = 121,230.29 : x
  2. Step 2: Convert to fraction form
    208,425.88/287,595.02 = 121,230.29/x
  3. Step 3: Cross multiply
    208,425.88x = 287,595.02 × 121,230.29
  4. Step 4: Simplify right side
    208,425.88x = 34,865,227,081.50
  5. Step 5: Solve for x
    x = 34,865,227,081.50/208,425.88
  6. Step 6: Final answer
    x = 167,278.78

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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.