Home / 212,938.60-293,707.92-172,654.06

Finding the Fourth Proportional to 212,938.60, 293,707.92 and 172,654.06

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Solution

The fourth proportional to 212,938.60, 293,707.92 and 172,654.06 is: 238,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,938.60 : 293,707.92 = 172,654.06 : x
  2. Step 2: Convert to fraction form
    212,938.60/293,707.92 = 172,654.06/x
  3. Step 3: Cross multiply
    212,938.60x = 293,707.92 × 172,654.06
  4. Step 4: Simplify right side
    212,938.60x = 50,709,864,842.16
  5. Step 5: Solve for x
    x = 50,709,864,842.16/212,938.60
  6. Step 6: Final answer
    x = 238,143.13

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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.