Home / 400,125.30-552,165.12-218,836.64

Finding the Fourth Proportional to 400,125.30, 552,165.12 and 218,836.64

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Solution

The fourth proportional to 400,125.30, 552,165.12 and 218,836.64 is: 301,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,125.30 : 552,165.12 = 218,836.64 : x
  2. Step 2: Convert to fraction form
    400,125.30/552,165.12 = 218,836.64/x
  3. Step 3: Cross multiply
    400,125.30x = 552,165.12 × 218,836.64
  4. Step 4: Simplify right side
    400,125.30x = 120,833,959,586.00
  5. Step 5: Solve for x
    x = 120,833,959,586.00/400,125.30
  6. Step 6: Final answer
    x = 301,990.30

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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.