Home / 268,091.12-369,995.32-153,380.40

Finding the Fourth Proportional to 268,091.12, 369,995.32 and 153,380.40

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Solution

The fourth proportional to 268,091.12, 369,995.32 and 153,380.40 is: 211,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,091.12 : 369,995.32 = 153,380.40 : x
  2. Step 2: Convert to fraction form
    268,091.12/369,995.32 = 153,380.40/x
  3. Step 3: Cross multiply
    268,091.12x = 369,995.32 × 153,380.40
  4. Step 4: Simplify right side
    268,091.12x = 56,750,030,179.73
  5. Step 5: Solve for x
    x = 56,750,030,179.73/268,091.12
  6. Step 6: Final answer
    x = 211,681.87

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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.