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Finding the Fourth Proportional to 335,081.35, 502,339.41 and 145,398.76

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Solution

The fourth proportional to 335,081.35, 502,339.41 and 145,398.76 is: 217,975.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,081.35 : 502,339.41 = 145,398.76 : x
  2. Step 2: Convert to fraction form
    335,081.35/502,339.41 = 145,398.76/x
  3. Step 3: Cross multiply
    335,081.35x = 502,339.41 × 145,398.76
  4. Step 4: Simplify right side
    335,081.35x = 73,039,527,313.13
  5. Step 5: Solve for x
    x = 73,039,527,313.13/335,081.35
  6. Step 6: Final answer
    x = 217,975.51

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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.