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Finding the Fourth Proportional to 486,670.50, 730,005.75 and 154,246.50

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Solution

The fourth proportional to 486,670.50, 730,005.75 and 154,246.50 is: 231,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,670.50 : 730,005.75 = 154,246.50 : x
  2. Step 2: Convert to fraction form
    486,670.50/730,005.75 = 154,246.50/x
  3. Step 3: Cross multiply
    486,670.50x = 730,005.75 × 154,246.50
  4. Step 4: Simplify right side
    486,670.50x = 112,600,831,917.38
  5. Step 5: Solve for x
    x = 112,600,831,917.38/486,670.50
  6. Step 6: Final answer
    x = 231,369.75

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Similar ratio
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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.