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Finding the Fourth Proportional to 537,753.81, 806,625.24 and 138,393.03

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Solution

The fourth proportional to 537,753.81, 806,625.24 and 138,393.03 is: 207,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,753.81 : 806,625.24 = 138,393.03 : x
  2. Step 2: Convert to fraction form
    537,753.81/806,625.24 = 138,393.03/x
  3. Step 3: Cross multiply
    537,753.81x = 806,625.24 × 138,393.03
  4. Step 4: Simplify right side
    537,753.81x = 111,631,311,038.08
  5. Step 5: Solve for x
    x = 111,631,311,038.08/537,753.81
  6. Step 6: Final answer
    x = 207,588.14

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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.