Home / 438,655.17-658,097.55-154,334.22

Finding the Fourth Proportional to 438,655.17, 658,097.55 and 154,334.22

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Solution

The fourth proportional to 438,655.17, 658,097.55 and 154,334.22 is: 231,541.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,655.17 : 658,097.55 = 154,334.22 : x
  2. Step 2: Convert to fraction form
    438,655.17/658,097.55 = 154,334.22/x
  3. Step 3: Cross multiply
    438,655.17x = 658,097.55 × 154,334.22
  4. Step 4: Simplify right side
    438,655.17x = 101,566,972,063.16
  5. Step 5: Solve for x
    x = 101,566,972,063.16/438,655.17
  6. Step 6: Final answer
    x = 231,541.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.