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Finding the Fourth Proportional to 220,411.86, 304,201.61 and 134,420.74

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Solution

The fourth proportional to 220,411.86, 304,201.61 and 134,420.74 is: 185,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,411.86 : 304,201.61 = 134,420.74 : x
  2. Step 2: Convert to fraction form
    220,411.86/304,201.61 = 134,420.74/x
  3. Step 3: Cross multiply
    220,411.86x = 304,201.61 × 134,420.74
  4. Step 4: Simplify right side
    220,411.86x = 40,891,005,233.54
  5. Step 5: Solve for x
    x = 40,891,005,233.54/220,411.86
  6. Step 6: Final answer
    x = 185,520.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.