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Finding the Fourth Proportional to 154,376.80, 231,565.20 and 119,384.80

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Solution

The fourth proportional to 154,376.80, 231,565.20 and 119,384.80 is: 179,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,376.80 : 231,565.20 = 119,384.80 : x
  2. Step 2: Convert to fraction form
    154,376.80/231,565.20 = 119,384.80/x
  3. Step 3: Cross multiply
    154,376.80x = 231,565.20 × 119,384.80
  4. Step 4: Simplify right side
    154,376.80x = 27,645,365,088.96
  5. Step 5: Solve for x
    x = 27,645,365,088.96/154,376.80
  6. Step 6: Final answer
    x = 179,077.20

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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.