Home / 438,110.10-657,165.15-269,820.45

Finding the Fourth Proportional to 438,110.10, 657,165.15 and 269,820.45

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Solution

The fourth proportional to 438,110.10, 657,165.15 and 269,820.45 is: 404,730.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,110.10 : 657,165.15 = 269,820.45 : x
  2. Step 2: Convert to fraction form
    438,110.10/657,165.15 = 269,820.45/x
  3. Step 3: Cross multiply
    438,110.10x = 657,165.15 × 269,820.45
  4. Step 4: Simplify right side
    438,110.10x = 177,316,596,497.32
  5. Step 5: Solve for x
    x = 177,316,596,497.32/438,110.10
  6. Step 6: Final answer
    x = 404,730.68

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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.