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Finding the Fourth Proportional to 307,753.01, 424,697.54 and 178,723.21

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Solution

The fourth proportional to 307,753.01, 424,697.54 and 178,723.21 is: 246,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,753.01 : 424,697.54 = 178,723.21 : x
  2. Step 2: Convert to fraction form
    307,753.01/424,697.54 = 178,723.21/x
  3. Step 3: Cross multiply
    307,753.01x = 424,697.54 × 178,723.21
  4. Step 4: Simplify right side
    307,753.01x = 75,903,306,734.29
  5. Step 5: Solve for x
    x = 75,903,306,734.29/307,753.01
  6. Step 6: Final answer
    x = 246,637.09

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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.