Home / 318,048.74-438,910.65-172,854.52

Finding the Fourth Proportional to 318,048.74, 438,910.65 and 172,854.52

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Solution

The fourth proportional to 318,048.74, 438,910.65 and 172,854.52 is: 238,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,048.74 : 438,910.65 = 172,854.52 : x
  2. Step 2: Convert to fraction form
    318,048.74/438,910.65 = 172,854.52/x
  3. Step 3: Cross multiply
    318,048.74x = 438,910.65 × 172,854.52
  4. Step 4: Simplify right side
    318,048.74x = 75,867,689,248.58
  5. Step 5: Solve for x
    x = 75,867,689,248.58/318,048.74
  6. Step 6: Final answer
    x = 238,541.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.