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Finding the Fourth Proportional to 202,406.32, 303,203.40 and 185,871.52

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Solution

The fourth proportional to 202,406.32, 303,203.40 and 185,871.52 is: 278,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,406.32 : 303,203.40 = 185,871.52 : x
  2. Step 2: Convert to fraction form
    202,406.32/303,203.40 = 185,871.52/x
  3. Step 3: Cross multiply
    202,406.32x = 303,203.40 × 185,871.52
  4. Step 4: Simplify right side
    202,406.32x = 56,356,876,827.17
  5. Step 5: Solve for x
    x = 56,356,876,827.17/202,406.32
  6. Step 6: Final answer
    x = 278,434.37

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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.