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Finding the Fourth Proportional to 243,835.92, 365,753.88 and 85,963.68

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Solution

The fourth proportional to 243,835.92, 365,753.88 and 85,963.68 is: 128,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,835.92 : 365,753.88 = 85,963.68 : x
  2. Step 2: Convert to fraction form
    243,835.92/365,753.88 = 85,963.68/x
  3. Step 3: Cross multiply
    243,835.92x = 365,753.88 × 85,963.68
  4. Step 4: Simplify right side
    243,835.92x = 31,441,549,499.08
  5. Step 5: Solve for x
    x = 31,441,549,499.08/243,835.92
  6. Step 6: Final answer
    x = 128,945.52

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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.