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Finding the Fourth Proportional to 154,065.40, 230,838.90 and 144,734.20

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Solution

The fourth proportional to 154,065.40, 230,838.90 and 144,734.20 is: 216,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,065.40 : 230,838.90 = 144,734.20 : x
  2. Step 2: Convert to fraction form
    154,065.40/230,838.90 = 144,734.20/x
  3. Step 3: Cross multiply
    154,065.40x = 230,838.90 × 144,734.20
  4. Step 4: Simplify right side
    154,065.40x = 33,410,283,520.38
  5. Step 5: Solve for x
    x = 33,410,283,520.38/154,065.40
  6. Step 6: Final answer
    x = 216,857.80

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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.