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Finding the Fourth Proportional to 230,424.79, 345,637.23 and 72,665.59

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Solution

The fourth proportional to 230,424.79, 345,637.23 and 72,665.59 is: 108,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,424.79 : 345,637.23 = 72,665.59 : x
  2. Step 2: Convert to fraction form
    230,424.79/345,637.23 = 72,665.59/x
  3. Step 3: Cross multiply
    230,424.79x = 345,637.23 × 72,665.59
  4. Step 4: Simplify right side
    230,424.79x = 25,115,933,243.92
  5. Step 5: Solve for x
    x = 25,115,933,243.92/230,424.79
  6. Step 6: Final answer
    x = 108,998.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.