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Finding the Fourth Proportional to 311,532.67, 467,331.81 and 153,609.40

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Solution

The fourth proportional to 311,532.67, 467,331.81 and 153,609.40 is: 230,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,532.67 : 467,331.81 = 153,609.40 : x
  2. Step 2: Convert to fraction form
    311,532.67/467,331.81 = 153,609.40/x
  3. Step 3: Cross multiply
    311,532.67x = 467,331.81 × 153,609.40
  4. Step 4: Simplify right side
    311,532.67x = 71,786,558,935.01
  5. Step 5: Solve for x
    x = 71,786,558,935.01/311,532.67
  6. Step 6: Final answer
    x = 230,430.28

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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.