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Finding the Fourth Proportional to 220,875.61, 330,658.92 and 136,364.05

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Solution

The fourth proportional to 220,875.61, 330,658.92 and 136,364.05 is: 204,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,875.61 : 330,658.92 = 136,364.05 : x
  2. Step 2: Convert to fraction form
    220,875.61/330,658.92 = 136,364.05/x
  3. Step 3: Cross multiply
    220,875.61x = 330,658.92 × 136,364.05
  4. Step 4: Simplify right side
    220,875.61x = 45,089,989,499.83
  5. Step 5: Solve for x
    x = 45,089,989,499.83/220,875.61
  6. Step 6: Final answer
    x = 204,142.00

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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.