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Finding the Fourth Proportional to 144,346.56, 216,531.36 and 39,174.72

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Solution

The fourth proportional to 144,346.56, 216,531.36 and 39,174.72 is: 58,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,346.56 : 216,531.36 = 39,174.72 : x
  2. Step 2: Convert to fraction form
    144,346.56/216,531.36 = 39,174.72/x
  3. Step 3: Cross multiply
    144,346.56x = 216,531.36 × 39,174.72
  4. Step 4: Simplify right side
    144,346.56x = 8,482,555,399.22
  5. Step 5: Solve for x
    x = 8,482,555,399.22/144,346.56
  6. Step 6: Final answer
    x = 58,765.21

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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.