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Finding the Fourth Proportional to 199,888.80, 299,798.64 and 75,230.88

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Solution

The fourth proportional to 199,888.80, 299,798.64 and 75,230.88 is: 112,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,888.80 : 299,798.64 = 75,230.88 : x
  2. Step 2: Convert to fraction form
    199,888.80/299,798.64 = 75,230.88/x
  3. Step 3: Cross multiply
    199,888.80x = 299,798.64 × 75,230.88
  4. Step 4: Simplify right side
    199,888.80x = 22,554,115,510.00
  5. Step 5: Solve for x
    x = 22,554,115,510.00/199,888.80
  6. Step 6: Final answer
    x = 112,833.31

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1.5x scale

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.