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Finding the Fourth Proportional to 325,029.60, 487,832.40 and 191,743.20

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Solution

The fourth proportional to 325,029.60, 487,832.40 and 191,743.20 is: 287,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,029.60 : 487,832.40 = 191,743.20 : x
  2. Step 2: Convert to fraction form
    325,029.60/487,832.40 = 191,743.20/x
  3. Step 3: Cross multiply
    325,029.60x = 487,832.40 × 191,743.20
  4. Step 4: Simplify right side
    325,029.60x = 93,538,545,439.68
  5. Step 5: Solve for x
    x = 93,538,545,439.68/325,029.60
  6. Step 6: Final answer
    x = 287,784.70

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1.5x scale

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.