Home / 220,273.28-304,103.04-145,040.64

Finding the Fourth Proportional to 220,273.28, 304,103.04 and 145,040.64

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Solution

The fourth proportional to 220,273.28, 304,103.04 and 145,040.64 is: 200,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,273.28 : 304,103.04 = 145,040.64 : x
  2. Step 2: Convert to fraction form
    220,273.28/304,103.04 = 145,040.64/x
  3. Step 3: Cross multiply
    220,273.28x = 304,103.04 × 145,040.64
  4. Step 4: Simplify right side
    220,273.28x = 44,107,299,547.55
  5. Step 5: Solve for x
    x = 44,107,299,547.55/220,273.28
  6. Step 6: Final answer
    x = 200,238.99

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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.