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Finding the Fourth Proportional to 154,424.60, 231,636.90 and 60,918.20

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Solution

The fourth proportional to 154,424.60, 231,636.90 and 60,918.20 is: 91,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,424.60 : 231,636.90 = 60,918.20 : x
  2. Step 2: Convert to fraction form
    154,424.60/231,636.90 = 60,918.20/x
  3. Step 3: Cross multiply
    154,424.60x = 231,636.90 × 60,918.20
  4. Step 4: Simplify right side
    154,424.60x = 14,110,903,001.58
  5. Step 5: Solve for x
    x = 14,110,903,001.58/154,424.60
  6. Step 6: Final answer
    x = 91,377.30

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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.