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Finding the Fourth Proportional to 502,523.40, 753,554.70 and 221,896.20

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Solution

The fourth proportional to 502,523.40, 753,554.70 and 221,896.20 is: 332,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,523.40 : 753,554.70 = 221,896.20 : x
  2. Step 2: Convert to fraction form
    502,523.40/753,554.70 = 221,896.20/x
  3. Step 3: Cross multiply
    502,523.40x = 753,554.70 × 221,896.20
  4. Step 4: Simplify right side
    502,523.40x = 167,210,924,422.14
  5. Step 5: Solve for x
    x = 167,210,924,422.14/502,523.40
  6. Step 6: Final answer
    x = 332,742.56

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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.