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Finding the Fourth Proportional to 150,657.03, 225,985.55 and 66,399.21

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Solution

The fourth proportional to 150,657.03, 225,985.55 and 66,399.21 is: 99,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,657.03 : 225,985.55 = 66,399.21 : x
  2. Step 2: Convert to fraction form
    150,657.03/225,985.55 = 66,399.21/x
  3. Step 3: Cross multiply
    150,657.03x = 225,985.55 × 66,399.21
  4. Step 4: Simplify right side
    150,657.03x = 15,005,261,659.42
  5. Step 5: Solve for x
    x = 15,005,261,659.42/150,657.03
  6. Step 6: Final answer
    x = 99,598.82

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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.