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Finding the Fourth Proportional to 288,013.20, 432,084.60 and 169,623.60

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Solution

The fourth proportional to 288,013.20, 432,084.60 and 169,623.60 is: 254,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,013.20 : 432,084.60 = 169,623.60 : x
  2. Step 2: Convert to fraction form
    288,013.20/432,084.60 = 169,623.60/x
  3. Step 3: Cross multiply
    288,013.20x = 432,084.60 × 169,623.60
  4. Step 4: Simplify right side
    288,013.20x = 73,291,745,356.56
  5. Step 5: Solve for x
    x = 73,291,745,356.56/288,013.20
  6. Step 6: Final answer
    x = 254,473.56

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1.5x scale

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.