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Finding the Fourth Proportional to 438,636.94, 605,320.90 and 237,432.94

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Solution

The fourth proportional to 438,636.94, 605,320.90 and 237,432.94 is: 327,658.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,636.94 : 605,320.90 = 237,432.94 : x
  2. Step 2: Convert to fraction form
    438,636.94/605,320.90 = 237,432.94/x
  3. Step 3: Cross multiply
    438,636.94x = 605,320.90 × 237,432.94
  4. Step 4: Simplify right side
    438,636.94x = 143,723,118,823.56
  5. Step 5: Solve for x
    x = 143,723,118,823.56/438,636.94
  6. Step 6: Final answer
    x = 327,658.50

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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.