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Finding the Fourth Proportional to 347,425.72, 479,407.20 and 194,472.48

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Solution

The fourth proportional to 347,425.72, 479,407.20 and 194,472.48 is: 268,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,425.72 : 479,407.20 = 194,472.48 : x
  2. Step 2: Convert to fraction form
    347,425.72/479,407.20 = 194,472.48/x
  3. Step 3: Cross multiply
    347,425.72x = 479,407.20 × 194,472.48
  4. Step 4: Simplify right side
    347,425.72x = 93,231,507,113.86
  5. Step 5: Solve for x
    x = 93,231,507,113.86/347,425.72
  6. Step 6: Final answer
    x = 268,349.47

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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.