Home / 171,381.40-257,072.10-145,202.20

Finding the Fourth Proportional to 171,381.40, 257,072.10 and 145,202.20

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Solution

The fourth proportional to 171,381.40, 257,072.10 and 145,202.20 is: 217,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,381.40 : 257,072.10 = 145,202.20 : x
  2. Step 2: Convert to fraction form
    171,381.40/257,072.10 = 145,202.20/x
  3. Step 3: Cross multiply
    171,381.40x = 257,072.10 × 145,202.20
  4. Step 4: Simplify right side
    171,381.40x = 37,327,434,478.62
  5. Step 5: Solve for x
    x = 37,327,434,478.62/171,381.40
  6. Step 6: Final answer
    x = 217,803.30

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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.