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Finding the Fourth Proportional to 538,391.77, 807,603.31 and 201,368.12

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Solution

The fourth proportional to 538,391.77, 807,603.31 and 201,368.12 is: 302,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,391.77 : 807,603.31 = 201,368.12 : x
  2. Step 2: Convert to fraction form
    538,391.77/807,603.31 = 201,368.12/x
  3. Step 3: Cross multiply
    538,391.77x = 807,603.31 × 201,368.12
  4. Step 4: Simplify right side
    538,391.77x = 162,625,558,725.56
  5. Step 5: Solve for x
    x = 162,625,558,725.56/538,391.77
  6. Step 6: Final answer
    x = 302,058.03

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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.