Home / 228,031.20-342,046.80-109,641.60

Finding the Fourth Proportional to 228,031.20, 342,046.80 and 109,641.60

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Solution

The fourth proportional to 228,031.20, 342,046.80 and 109,641.60 is: 164,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,031.20 : 342,046.80 = 109,641.60 : x
  2. Step 2: Convert to fraction form
    228,031.20/342,046.80 = 109,641.60/x
  3. Step 3: Cross multiply
    228,031.20x = 342,046.80 × 109,641.60
  4. Step 4: Simplify right side
    228,031.20x = 37,502,558,426.88
  5. Step 5: Solve for x
    x = 37,502,558,426.88/228,031.20
  6. Step 6: Final answer
    x = 164,462.40

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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.