Home / 207,918.10-311,877.15-148,431.70

Finding the Fourth Proportional to 207,918.10, 311,877.15 and 148,431.70

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Solution

The fourth proportional to 207,918.10, 311,877.15 and 148,431.70 is: 222,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918.10 : 311,877.15 = 148,431.70 : x
  2. Step 2: Convert to fraction form
    207,918.10/311,877.15 = 148,431.70/x
  3. Step 3: Cross multiply
    207,918.10x = 311,877.15 × 148,431.70
  4. Step 4: Simplify right side
    207,918.10x = 46,292,455,565.66
  5. Step 5: Solve for x
    x = 46,292,455,565.66/207,918.10
  6. Step 6: Final answer
    x = 222,647.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.