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Finding the Fourth Proportional to 307,508.60, 424,293.29 and 178,468.72

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Solution

The fourth proportional to 307,508.60, 424,293.29 and 178,468.72 is: 246,247.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,508.60 : 424,293.29 = 178,468.72 : x
  2. Step 2: Convert to fraction form
    307,508.60/424,293.29 = 178,468.72/x
  3. Step 3: Cross multiply
    307,508.60x = 424,293.29 × 178,468.72
  4. Step 4: Simplify right side
    307,508.60x = 75,723,079,087.07
  5. Step 5: Solve for x
    x = 75,723,079,087.07/307,508.60
  6. Step 6: Final answer
    x = 246,247.03

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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.