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Finding the Fourth Proportional to 360,207.96, 540,142.24 and 210,491.52

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Solution

The fourth proportional to 360,207.96, 540,142.24 and 210,491.52 is: 315,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,207.96 : 540,142.24 = 210,491.52 : x
  2. Step 2: Convert to fraction form
    360,207.96/540,142.24 = 210,491.52/x
  3. Step 3: Cross multiply
    360,207.96x = 540,142.24 × 210,491.52
  4. Step 4: Simplify right side
    360,207.96x = 113,695,361,113.81
  5. Step 5: Solve for x
    x = 113,695,361,113.81/360,207.96
  6. Step 6: Final answer
    x = 315,638.11

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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.