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Finding the Fourth Proportional to 285,109.66, 427,759.47 and 95,588.78

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Solution

The fourth proportional to 285,109.66, 427,759.47 and 95,588.78 is: 143,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,109.66 : 427,759.47 = 95,588.78 : x
  2. Step 2: Convert to fraction form
    285,109.66/427,759.47 = 95,588.78/x
  3. Step 3: Cross multiply
    285,109.66x = 427,759.47 × 95,588.78
  4. Step 4: Simplify right side
    285,109.66x = 40,889,005,870.75
  5. Step 5: Solve for x
    x = 40,889,005,870.75/285,109.66
  6. Step 6: Final answer
    x = 143,415.01

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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.