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Finding the Fourth Proportional to 432,278.61, 648,404.08 and 195,621.29

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Solution

The fourth proportional to 432,278.61, 648,404.08 and 195,621.29 is: 293,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,278.61 : 648,404.08 = 195,621.29 : x
  2. Step 2: Convert to fraction form
    432,278.61/648,404.08 = 195,621.29/x
  3. Step 3: Cross multiply
    432,278.61x = 648,404.08 × 195,621.29
  4. Step 4: Simplify right side
    432,278.61x = 126,841,642,570.86
  5. Step 5: Solve for x
    x = 126,841,642,570.86/432,278.61
  6. Step 6: Final answer
    x = 293,425.67

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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.