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Finding the Fourth Proportional to 538,990.61, 808,624.42 and 202,035.87

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Solution

The fourth proportional to 538,990.61, 808,624.42 and 202,035.87 is: 303,105.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,990.61 : 808,624.42 = 202,035.87 : x
  2. Step 2: Convert to fraction form
    538,990.61/808,624.42 = 202,035.87/x
  3. Step 3: Cross multiply
    538,990.61x = 808,624.42 × 202,035.87
  4. Step 4: Simplify right side
    538,990.61x = 163,371,137,692.86
  5. Step 5: Solve for x
    x = 163,371,137,692.86/538,990.61
  6. Step 6: Final answer
    x = 303,105.72

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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.