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Finding the Fourth Proportional to 243,762.97, 365,578.84 and 85,970.92

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Solution

The fourth proportional to 243,762.97, 365,578.84 and 85,970.92 is: 128,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,762.97 : 365,578.84 = 85,970.92 : x
  2. Step 2: Convert to fraction form
    243,762.97/365,578.84 = 85,970.92/x
  3. Step 3: Cross multiply
    243,762.97x = 365,578.84 × 85,970.92
  4. Step 4: Simplify right side
    243,762.97x = 31,429,149,207.33
  5. Step 5: Solve for x
    x = 31,429,149,207.33/243,762.97
  6. Step 6: Final answer
    x = 128,933.24

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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.