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Finding the Fourth Proportional to 313,372.48, 432,480.78 and 177,430.38

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Solution

The fourth proportional to 313,372.48, 432,480.78 and 177,430.38 is: 244,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,372.48 : 432,480.78 = 177,430.38 : x
  2. Step 2: Convert to fraction form
    313,372.48/432,480.78 = 177,430.38/x
  3. Step 3: Cross multiply
    313,372.48x = 432,480.78 × 177,430.38
  4. Step 4: Simplify right side
    313,372.48x = 76,735,229,138.10
  5. Step 5: Solve for x
    x = 76,735,229,138.10/313,372.48
  6. Step 6: Final answer
    x = 244,869.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.