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Finding the Fourth Proportional to 265,927.48, 398,888.16 and 76,392.49

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Solution

The fourth proportional to 265,927.48, 398,888.16 and 76,392.49 is: 114,587.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,927.48 : 398,888.16 = 76,392.49 : x
  2. Step 2: Convert to fraction form
    265,927.48/398,888.16 = 76,392.49/x
  3. Step 3: Cross multiply
    265,927.48x = 398,888.16 × 76,392.49
  4. Step 4: Simplify right side
    265,927.48x = 30,472,059,773.92
  5. Step 5: Solve for x
    x = 30,472,059,773.92/265,927.48
  6. Step 6: Final answer
    x = 114,587.86

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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.