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Finding the Fourth Proportional to 351,952.40, 527,928.60 and 115,302.80

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Solution

The fourth proportional to 351,952.40, 527,928.60 and 115,302.80 is: 172,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,952.40 : 527,928.60 = 115,302.80 : x
  2. Step 2: Convert to fraction form
    351,952.40/527,928.60 = 115,302.80/x
  3. Step 3: Cross multiply
    351,952.40x = 527,928.60 × 115,302.80
  4. Step 4: Simplify right side
    351,952.40x = 60,871,645,780.08
  5. Step 5: Solve for x
    x = 60,871,645,780.08/351,952.40
  6. Step 6: Final answer
    x = 172,954.20

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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.