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Finding the Fourth Proportional to 391,854.29, 540,529.25 and 246,429.41

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Solution

The fourth proportional to 391,854.29, 540,529.25 and 246,429.41 is: 339,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,854.29 : 540,529.25 = 246,429.41 : x
  2. Step 2: Convert to fraction form
    391,854.29/540,529.25 = 246,429.41/x
  3. Step 3: Cross multiply
    391,854.29x = 540,529.25 × 246,429.41
  4. Step 4: Simplify right side
    391,854.29x = 133,202,301,462.60
  5. Step 5: Solve for x
    x = 133,202,301,462.60/391,854.29
  6. Step 6: Final answer
    x = 339,928.15

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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.