Home / 199,397.12-298,711.80-157,053.20

Finding the Fourth Proportional to 199,397.12, 298,711.80 and 157,053.20

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Solution

The fourth proportional to 199,397.12, 298,711.80 and 157,053.20 is: 235,277.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,397.12 : 298,711.80 = 157,053.20 : x
  2. Step 2: Convert to fraction form
    199,397.12/298,711.80 = 157,053.20/x
  3. Step 3: Cross multiply
    199,397.12x = 298,711.80 × 157,053.20
  4. Step 4: Simplify right side
    199,397.12x = 46,913,644,067.76
  5. Step 5: Solve for x
    x = 46,913,644,067.76/199,397.12
  6. Step 6: Final answer
    x = 235,277.44

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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.