Home / 240,690.12-332,108.10-138,701.28

Finding the Fourth Proportional to 240,690.12, 332,108.10 and 138,701.28

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Solution

The fourth proportional to 240,690.12, 332,108.10 and 138,701.28 is: 191,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,690.12 : 332,108.10 = 138,701.28 : x
  2. Step 2: Convert to fraction form
    240,690.12/332,108.10 = 138,701.28/x
  3. Step 3: Cross multiply
    240,690.12x = 332,108.10 × 138,701.28
  4. Step 4: Simplify right side
    240,690.12x = 46,063,818,568.37
  5. Step 5: Solve for x
    x = 46,063,818,568.37/240,690.12
  6. Step 6: Final answer
    x = 191,382.26

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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.