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Finding the Fourth Proportional to 190,158.80, 285,216.24 and 49,928.40

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Solution

The fourth proportional to 190,158.80, 285,216.24 and 49,928.40 is: 74,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,158.80 : 285,216.24 = 49,928.40 : x
  2. Step 2: Convert to fraction form
    190,158.80/285,216.24 = 49,928.40/x
  3. Step 3: Cross multiply
    190,158.80x = 285,216.24 × 49,928.40
  4. Step 4: Simplify right side
    190,158.80x = 14,240,390,517.22
  5. Step 5: Solve for x
    x = 14,240,390,517.22/190,158.80
  6. Step 6: Final answer
    x = 74,886.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.