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Finding the Fourth Proportional to 335,111.87, 502,385.46 and 145,429.40

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Solution

The fourth proportional to 335,111.87, 502,385.46 and 145,429.40 is: 218,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,111.87 : 502,385.46 = 145,429.40 : x
  2. Step 2: Convert to fraction form
    335,111.87/502,385.46 = 145,429.40/x
  3. Step 3: Cross multiply
    335,111.87x = 502,385.46 × 145,429.40
  4. Step 4: Simplify right side
    335,111.87x = 73,061,617,272.49
  5. Step 5: Solve for x
    x = 73,061,617,272.49/335,111.87
  6. Step 6: Final answer
    x = 218,021.58

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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.