Home / 212,948.10-293,721.12-172,663.56

Finding the Fourth Proportional to 212,948.10, 293,721.12 and 172,663.56

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Solution

The fourth proportional to 212,948.10, 293,721.12 and 172,663.56 is: 238,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,948.10 : 293,721.12 = 172,663.56 : x
  2. Step 2: Convert to fraction form
    212,948.10/293,721.12 = 172,663.56/x
  3. Step 3: Cross multiply
    212,948.10x = 293,721.12 × 172,663.56
  4. Step 4: Simplify right side
    212,948.10x = 50,714,934,226.39
  5. Step 5: Solve for x
    x = 50,714,934,226.39/212,948.10
  6. Step 6: Final answer
    x = 238,156.31

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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.