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Finding the Fourth Proportional to 243,240.24, 365,026.46 and 85,468.72

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Solution

The fourth proportional to 243,240.24, 365,026.46 and 85,468.72 is: 128,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,240.24 : 365,026.46 = 85,468.72 : x
  2. Step 2: Convert to fraction form
    243,240.24/365,026.46 = 85,468.72/x
  3. Step 3: Cross multiply
    243,240.24x = 365,026.46 × 85,468.72
  4. Step 4: Simplify right side
    243,240.24x = 31,198,344,302.33
  5. Step 5: Solve for x
    x = 31,198,344,302.33/243,240.24
  6. Step 6: Final answer
    x = 128,261.44

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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.