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Finding the Fourth Proportional to 432,003.30, 648,004.95 and 151,520.55

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Solution

The fourth proportional to 432,003.30, 648,004.95 and 151,520.55 is: 227,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.30 : 648,004.95 = 151,520.55 : x
  2. Step 2: Convert to fraction form
    432,003.30/648,004.95 = 151,520.55/x
  3. Step 3: Cross multiply
    432,003.30x = 648,004.95 × 151,520.55
  4. Step 4: Simplify right side
    432,003.30x = 98,186,066,426.72
  5. Step 5: Solve for x
    x = 98,186,066,426.72/432,003.30
  6. Step 6: Final answer
    x = 227,280.83

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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.