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Finding the Fourth Proportional to 275,490.40, 412,544.40 and 181,487.20

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Solution

The fourth proportional to 275,490.40, 412,544.40 and 181,487.20 is: 271,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,490.40 : 412,544.40 = 181,487.20 : x
  2. Step 2: Convert to fraction form
    275,490.40/412,544.40 = 181,487.20/x
  3. Step 3: Cross multiply
    275,490.40x = 412,544.40 × 181,487.20
  4. Step 4: Simplify right side
    275,490.40x = 74,871,528,031.68
  5. Step 5: Solve for x
    x = 74,871,528,031.68/275,490.40
  6. Step 6: Final answer
    x = 271,775.45

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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.