Home / 199,403.12-298,720.80-157,059.20

Finding the Fourth Proportional to 199,403.12, 298,720.80 and 157,059.20

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Solution

The fourth proportional to 199,403.12, 298,720.80 and 157,059.20 is: 235,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,403.12 : 298,720.80 = 157,059.20 : x
  2. Step 2: Convert to fraction form
    199,403.12/298,720.80 = 157,059.20/x
  3. Step 3: Cross multiply
    199,403.12x = 298,720.80 × 157,059.20
  4. Step 4: Simplify right side
    199,403.12x = 46,916,849,871.36
  5. Step 5: Solve for x
    x = 46,916,849,871.36/199,403.12
  6. Step 6: Final answer
    x = 235,286.44

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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.