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Finding the Fourth Proportional to 387,952.84, 535,294.64 and 226,776.72

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Solution

The fourth proportional to 387,952.84, 535,294.64 and 226,776.72 is: 312,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,952.84 : 535,294.64 = 226,776.72 : x
  2. Step 2: Convert to fraction form
    387,952.84/535,294.64 = 226,776.72/x
  3. Step 3: Cross multiply
    387,952.84x = 535,294.64 × 226,776.72
  4. Step 4: Simplify right side
    387,952.84x = 121,392,362,692.78
  5. Step 5: Solve for x
    x = 121,392,362,692.78/387,952.84
  6. Step 6: Final answer
    x = 312,904.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.