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Finding the Fourth Proportional to 391,667.87, 540,503.03 and 246,569.65

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Solution

The fourth proportional to 391,667.87, 540,503.03 and 246,569.65 is: 340,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,667.87 : 540,503.03 = 246,569.65 : x
  2. Step 2: Convert to fraction form
    391,667.87/540,503.03 = 246,569.65/x
  3. Step 3: Cross multiply
    391,667.87x = 540,503.03 × 246,569.65
  4. Step 4: Simplify right side
    391,667.87x = 133,271,644,269.78
  5. Step 5: Solve for x
    x = 133,271,644,269.78/391,667.87
  6. Step 6: Final answer
    x = 340,266.98

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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.