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Finding the Fourth Proportional to 347,647.89, 479,760.89 and 226,866.45

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Solution

The fourth proportional to 347,647.89, 479,760.89 and 226,866.45 is: 313,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,647.89 : 479,760.89 = 226,866.45 : x
  2. Step 2: Convert to fraction form
    347,647.89/479,760.89 = 226,866.45/x
  3. Step 3: Cross multiply
    347,647.89x = 479,760.89 × 226,866.45
  4. Step 4: Simplify right side
    347,647.89x = 108,841,648,828.81
  5. Step 5: Solve for x
    x = 108,841,648,828.81/347,647.89
  6. Step 6: Final answer
    x = 313,080.14

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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.