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Finding the Fourth Proportional to 154,484.70, 231,727.05 and 49,314.30

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Solution

The fourth proportional to 154,484.70, 231,727.05 and 49,314.30 is: 73,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,484.70 : 231,727.05 = 49,314.30 : x
  2. Step 2: Convert to fraction form
    154,484.70/231,727.05 = 49,314.30/x
  3. Step 3: Cross multiply
    154,484.70x = 231,727.05 × 49,314.30
  4. Step 4: Simplify right side
    154,484.70x = 11,427,457,261.82
  5. Step 5: Solve for x
    x = 11,427,457,261.82/154,484.70
  6. Step 6: Final answer
    x = 73,971.45

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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.