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Finding the Fourth Proportional to 347,355, 479,349.90 and 196,448.76

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Solution

The fourth proportional to 347,355, 479,349.90 and 196,448.76 is: 271,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,355 : 479,349.90 = 196,448.76 : x
  2. Step 2: Convert to fraction form
    347,355/479,349.90 = 196,448.76/x
  3. Step 3: Cross multiply
    347,355x = 479,349.90 × 196,448.76
  4. Step 4: Simplify right side
    347,355x = 94,167,693,461.12
  5. Step 5: Solve for x
    x = 94,167,693,461.12/347,355
  6. Step 6: Final answer
    x = 271,099.29

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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.