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Finding the Fourth Proportional to 265,425.83, 398,111.07 and 75,873.91

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Solution

The fourth proportional to 265,425.83, 398,111.07 and 75,873.91 is: 113,802.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,425.83 : 398,111.07 = 75,873.91 : x
  2. Step 2: Convert to fraction form
    265,425.83/398,111.07 = 75,873.91/x
  3. Step 3: Cross multiply
    265,425.83x = 398,111.07 × 75,873.91
  4. Step 4: Simplify right side
    265,425.83x = 30,206,243,115.81
  5. Step 5: Solve for x
    x = 30,206,243,115.81/265,425.83
  6. Step 6: Final answer
    x = 113,802.95

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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.