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Finding the Fourth Proportional to 360,572.64, 540,630 and 191,988.96

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Solution

The fourth proportional to 360,572.64, 540,630 and 191,988.96 is: 287,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,572.64 : 540,630 = 191,988.96 : x
  2. Step 2: Convert to fraction form
    360,572.64/540,630 = 191,988.96/x
  3. Step 3: Cross multiply
    360,572.64x = 540,630 × 191,988.96
  4. Step 4: Simplify right side
    360,572.64x = 103,794,991,444.80
  5. Step 5: Solve for x
    x = 103,794,991,444.80/360,572.64
  6. Step 6: Final answer
    x = 287,861.53

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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.