Home / 438,029.40-657,262.80-248,635.20

Finding the Fourth Proportional to 438,029.40, 657,262.80 and 248,635.20

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Solution

The fourth proportional to 438,029.40, 657,262.80 and 248,635.20 is: 373,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,029.40 : 657,262.80 = 248,635.20 : x
  2. Step 2: Convert to fraction form
    438,029.40/657,262.80 = 248,635.20/x
  3. Step 3: Cross multiply
    438,029.40x = 657,262.80 × 248,635.20
  4. Step 4: Simplify right side
    438,029.40x = 163,418,667,730.56
  5. Step 5: Solve for x
    x = 163,418,667,730.56/438,029.40
  6. Step 6: Final answer
    x = 373,076.94

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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.