Home / 218,643.90-327,528.45-147,785.10

Finding the Fourth Proportional to 218,643.90, 327,528.45 and 147,785.10

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Solution

The fourth proportional to 218,643.90, 327,528.45 and 147,785.10 is: 221,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,643.90 : 327,528.45 = 147,785.10 : x
  2. Step 2: Convert to fraction form
    218,643.90/327,528.45 = 147,785.10/x
  3. Step 3: Cross multiply
    218,643.90x = 327,528.45 × 147,785.10
  4. Step 4: Simplify right side
    218,643.90x = 48,403,824,736.10
  5. Step 5: Solve for x
    x = 48,403,824,736.10/218,643.90
  6. Step 6: Final answer
    x = 221,382.00

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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.