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Finding the Fourth Proportional to 240,142.08, 360,213.13 and 90,415.96

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Solution

The fourth proportional to 240,142.08, 360,213.13 and 90,415.96 is: 135,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,142.08 : 360,213.13 = 90,415.96 : x
  2. Step 2: Convert to fraction form
    240,142.08/360,213.13 = 90,415.96/x
  3. Step 3: Cross multiply
    240,142.08x = 360,213.13 × 90,415.96
  4. Step 4: Simplify right side
    240,142.08x = 32,569,015,953.55
  5. Step 5: Solve for x
    x = 32,569,015,953.55/240,142.08
  6. Step 6: Final answer
    x = 135,623.94

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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.