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Finding the Fourth Proportional to 335,215.20, 502,822.80 and 312,907.80

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Solution

The fourth proportional to 335,215.20, 502,822.80 and 312,907.80 is: 469,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,215.20 : 502,822.80 = 312,907.80 : x
  2. Step 2: Convert to fraction form
    335,215.20/502,822.80 = 312,907.80/x
  3. Step 3: Cross multiply
    335,215.20x = 502,822.80 × 312,907.80
  4. Step 4: Simplify right side
    335,215.20x = 157,337,176,137.84
  5. Step 5: Solve for x
    x = 157,337,176,137.84/335,215.20
  6. Step 6: Final answer
    x = 469,361.70

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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.