Home / 228,621.78-342,298.98-172,291.32

Finding the Fourth Proportional to 228,621.78, 342,298.98 and 172,291.32

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Solution

The fourth proportional to 228,621.78, 342,298.98 and 172,291.32 is: 257,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,621.78 : 342,298.98 = 172,291.32 : x
  2. Step 2: Convert to fraction form
    228,621.78/342,298.98 = 172,291.32/x
  3. Step 3: Cross multiply
    228,621.78x = 342,298.98 × 172,291.32
  4. Step 4: Simplify right side
    228,621.78x = 58,975,143,098.85
  5. Step 5: Solve for x
    x = 58,975,143,098.85/228,621.78
  6. Step 6: Final answer
    x = 257,959.43

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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.