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Finding the Fourth Proportional to 315,784.08, 473,750.01 and 215,991.27

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Solution

The fourth proportional to 315,784.08, 473,750.01 and 215,991.27 is: 324,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,784.08 : 473,750.01 = 215,991.27 : x
  2. Step 2: Convert to fraction form
    315,784.08/473,750.01 = 215,991.27/x
  3. Step 3: Cross multiply
    315,784.08x = 473,750.01 × 215,991.27
  4. Step 4: Simplify right side
    315,784.08x = 102,325,866,322.41
  5. Step 5: Solve for x
    x = 102,325,866,322.41/315,784.08
  6. Step 6: Final answer
    x = 324,037.44

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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.