Home / 199,399.12-298,714.80-157,055.20

Finding the Fourth Proportional to 199,399.12, 298,714.80 and 157,055.20

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Solution

The fourth proportional to 199,399.12, 298,714.80 and 157,055.20 is: 235,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,399.12 : 298,714.80 = 157,055.20 : x
  2. Step 2: Convert to fraction form
    199,399.12/298,714.80 = 157,055.20/x
  3. Step 3: Cross multiply
    199,399.12x = 298,714.80 × 157,055.20
  4. Step 4: Simplify right side
    199,399.12x = 46,914,712,656.96
  5. Step 5: Solve for x
    x = 46,914,712,656.96/199,399.12
  6. Step 6: Final answer
    x = 235,280.44

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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.