Home / 208,179.46-287,426.40-140,297.38

Finding the Fourth Proportional to 208,179.46, 287,426.40 and 140,297.38

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Solution

The fourth proportional to 208,179.46, 287,426.40 and 140,297.38 is: 193,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,179.46 : 287,426.40 = 140,297.38 : x
  2. Step 2: Convert to fraction form
    208,179.46/287,426.40 = 140,297.38/x
  3. Step 3: Cross multiply
    208,179.46x = 287,426.40 × 140,297.38
  4. Step 4: Simplify right side
    208,179.46x = 40,325,170,862.83
  5. Step 5: Solve for x
    x = 40,325,170,862.83/208,179.46
  6. Step 6: Final answer
    x = 193,703.89

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1.5x scale

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.