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Finding the Fourth Proportional to 352,987.30, 487,125.70 and 191,842.77

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Solution

The fourth proportional to 352,987.30, 487,125.70 and 191,842.77 is: 264,744.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.30 : 487,125.70 = 191,842.77 : x
  2. Step 2: Convert to fraction form
    352,987.30/487,125.70 = 191,842.77/x
  3. Step 3: Cross multiply
    352,987.30x = 487,125.70 × 191,842.77
  4. Step 4: Simplify right side
    352,987.30x = 93,451,541,670.17
  5. Step 5: Solve for x
    x = 93,451,541,670.17/352,987.30
  6. Step 6: Final answer
    x = 264,744.77

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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.