Home / 318,152.10-439,045.17-172,953.06

Finding the Fourth Proportional to 318,152.10, 439,045.17 and 172,953.06

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Solution

The fourth proportional to 318,152.10, 439,045.17 and 172,953.06 is: 238,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,152.10 : 439,045.17 = 172,953.06 : x
  2. Step 2: Convert to fraction form
    318,152.10/439,045.17 = 172,953.06/x
  3. Step 3: Cross multiply
    318,152.10x = 439,045.17 × 172,953.06
  4. Step 4: Simplify right side
    318,152.10x = 75,934,205,629.72
  5. Step 5: Solve for x
    x = 75,934,205,629.72/318,152.10
  6. Step 6: Final answer
    x = 238,672.65

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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.