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Finding the Fourth Proportional to 287,847.48, 431,800.02 and 88,165.56

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Solution

The fourth proportional to 287,847.48, 431,800.02 and 88,165.56 is: 132,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,847.48 : 431,800.02 = 88,165.56 : x
  2. Step 2: Convert to fraction form
    287,847.48/431,800.02 = 88,165.56/x
  3. Step 3: Cross multiply
    287,847.48x = 431,800.02 × 88,165.56
  4. Step 4: Simplify right side
    287,847.48x = 38,069,890,571.31
  5. Step 5: Solve for x
    x = 38,069,890,571.31/287,847.48
  6. Step 6: Final answer
    x = 132,257.16

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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.