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Finding the Fourth Proportional to 347,643.64, 479,755.02 and 226,862.20

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Solution

The fourth proportional to 347,643.64, 479,755.02 and 226,862.20 is: 313,074.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,643.64 : 479,755.02 = 226,862.20 : x
  2. Step 2: Convert to fraction form
    347,643.64/479,755.02 = 226,862.20/x
  3. Step 3: Cross multiply
    347,643.64x = 479,755.02 × 226,862.20
  4. Step 4: Simplify right side
    347,643.64x = 108,838,279,298.24
  5. Step 5: Solve for x
    x = 108,838,279,298.24/347,643.64
  6. Step 6: Final answer
    x = 313,074.27

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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.