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Finding the Fourth Proportional to 154,428.59, 230,615.17 and 152,758.62

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Solution

The fourth proportional to 154,428.59, 230,615.17 and 152,758.62 is: 228,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,428.59 : 230,615.17 = 152,758.62 : x
  2. Step 2: Convert to fraction form
    154,428.59/230,615.17 = 152,758.62/x
  3. Step 3: Cross multiply
    154,428.59x = 230,615.17 × 152,758.62
  4. Step 4: Simplify right side
    154,428.59x = 35,228,455,120.27
  5. Step 5: Solve for x
    x = 35,228,455,120.27/154,428.59
  6. Step 6: Final answer
    x = 228,121.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.