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Finding the Fourth Proportional to 545,212.85, 817,819.28 and 245,343.10

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Solution

The fourth proportional to 545,212.85, 817,819.28 and 245,343.10 is: 368,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,212.85 : 817,819.28 = 245,343.10 : x
  2. Step 2: Convert to fraction form
    545,212.85/817,819.28 = 245,343.10/x
  3. Step 3: Cross multiply
    545,212.85x = 817,819.28 × 245,343.10
  4. Step 4: Simplify right side
    545,212.85x = 200,646,316,168.25
  5. Step 5: Solve for x
    x = 200,646,316,168.25/545,212.85
  6. Step 6: Final answer
    x = 368,014.65

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Similar ratio
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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.