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Finding the Fourth Proportional to 240,135.66, 360,389.43 and 90,512.07

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Solution

The fourth proportional to 240,135.66, 360,389.43 and 90,512.07 is: 135,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,135.66 : 360,389.43 = 90,512.07 : x
  2. Step 2: Convert to fraction form
    240,135.66/360,389.43 = 90,512.07/x
  3. Step 3: Cross multiply
    240,135.66x = 360,389.43 × 90,512.07
  4. Step 4: Simplify right side
    240,135.66x = 32,619,593,315.42
  5. Step 5: Solve for x
    x = 32,619,593,315.42/240,135.66
  6. Step 6: Final answer
    x = 135,838.19

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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.