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Finding the Fourth Proportional to 404,715.52, 558,478.74 and 223,398.34

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Solution

The fourth proportional to 404,715.52, 558,478.74 and 223,398.34 is: 308,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,715.52 : 558,478.74 = 223,398.34 : x
  2. Step 2: Convert to fraction form
    404,715.52/558,478.74 = 223,398.34/x
  3. Step 3: Cross multiply
    404,715.52x = 558,478.74 × 223,398.34
  4. Step 4: Simplify right side
    404,715.52x = 124,763,223,441.29
  5. Step 5: Solve for x
    x = 124,763,223,441.29/404,715.52
  6. Step 6: Final answer
    x = 308,273.88

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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.