Home / 438,865.32-605,462.68-255,073.35

Finding the Fourth Proportional to 438,865.32, 605,462.68 and 255,073.35

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Solution

The fourth proportional to 438,865.32, 605,462.68 and 255,073.35 is: 351,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,865.32 : 605,462.68 = 255,073.35 : x
  2. Step 2: Convert to fraction form
    438,865.32/605,462.68 = 255,073.35/x
  3. Step 3: Cross multiply
    438,865.32x = 605,462.68 × 255,073.35
  4. Step 4: Simplify right side
    438,865.32x = 154,437,391,060.27
  5. Step 5: Solve for x
    x = 154,437,391,060.27/438,865.32
  6. Step 6: Final answer
    x = 351,901.56

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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.