Home / 265,834.29-398,773.04-78,845.25

Finding the Fourth Proportional to 265,834.29, 398,773.04 and 78,845.25

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Solution

The fourth proportional to 265,834.29, 398,773.04 and 78,845.25 is: 118,274.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,834.29 : 398,773.04 = 78,845.25 : x
  2. Step 2: Convert to fraction form
    265,834.29/398,773.04 = 78,845.25/x
  3. Step 3: Cross multiply
    265,834.29x = 398,773.04 × 78,845.25
  4. Step 4: Simplify right side
    265,834.29x = 31,441,359,637.83
  5. Step 5: Solve for x
    x = 31,441,359,637.83/265,834.29
  6. Step 6: Final answer
    x = 118,274.28

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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.