Home / 317,529.01-438,186.31-172,335.05

Finding the Fourth Proportional to 317,529.01, 438,186.31 and 172,335.05

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Solution

The fourth proportional to 317,529.01, 438,186.31 and 172,335.05 is: 237,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,529.01 : 438,186.31 = 172,335.05 : x
  2. Step 2: Convert to fraction form
    317,529.01/438,186.31 = 172,335.05/x
  3. Step 3: Cross multiply
    317,529.01x = 438,186.31 × 172,335.05
  4. Step 4: Simplify right side
    317,529.01x = 75,514,860,063.26
  5. Step 5: Solve for x
    x = 75,514,860,063.26/317,529.01
  6. Step 6: Final answer
    x = 237,820.35

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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.