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Finding the Fourth Proportional to 458,353.76, 687,549.24 and 218,344.24

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Solution

The fourth proportional to 458,353.76, 687,549.24 and 218,344.24 is: 327,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,353.76 : 687,549.24 = 218,344.24 : x
  2. Step 2: Convert to fraction form
    458,353.76/687,549.24 = 218,344.24/x
  3. Step 3: Cross multiply
    458,353.76x = 687,549.24 × 218,344.24
  4. Step 4: Simplify right side
    458,353.76x = 150,122,416,270.38
  5. Step 5: Solve for x
    x = 150,122,416,270.38/458,353.76
  6. Step 6: Final answer
    x = 327,525.22

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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.