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Finding the Fourth Proportional to 265,354.68, 398,187.54 and 190,394.04

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Solution

The fourth proportional to 265,354.68, 398,187.54 and 190,394.04 is: 285,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,354.68 : 398,187.54 = 190,394.04 : x
  2. Step 2: Convert to fraction form
    265,354.68/398,187.54 = 190,394.04/x
  3. Step 3: Cross multiply
    265,354.68x = 398,187.54 × 190,394.04
  4. Step 4: Simplify right side
    265,354.68x = 75,812,534,418.26
  5. Step 5: Solve for x
    x = 75,812,534,418.26/265,354.68
  6. Step 6: Final answer
    x = 285,702.65

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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.