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Finding the Fourth Proportional to 438,433.50, 605,038.23 and 237,229.50

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Solution

The fourth proportional to 438,433.50, 605,038.23 and 237,229.50 is: 327,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,433.50 : 605,038.23 = 237,229.50 : x
  2. Step 2: Convert to fraction form
    438,433.50/605,038.23 = 237,229.50/x
  3. Step 3: Cross multiply
    438,433.50x = 605,038.23 × 237,229.50
  4. Step 4: Simplify right side
    438,433.50x = 143,532,916,783.79
  5. Step 5: Solve for x
    x = 143,532,916,783.79/438,433.50
  6. Step 6: Final answer
    x = 327,376.71

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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.