Home / 409,215.12-564,732.20-225,461.24

Finding the Fourth Proportional to 409,215.12, 564,732.20 and 225,461.24

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Solution

The fourth proportional to 409,215.12, 564,732.20 and 225,461.24 is: 311,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,215.12 : 564,732.20 = 225,461.24 : x
  2. Step 2: Convert to fraction form
    409,215.12/564,732.20 = 225,461.24/x
  3. Step 3: Cross multiply
    409,215.12x = 564,732.20 × 225,461.24
  4. Step 4: Simplify right side
    409,215.12x = 127,325,222,079.93
  5. Step 5: Solve for x
    x = 127,325,222,079.93/409,215.12
  6. Step 6: Final answer
    x = 311,144.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.