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Finding the Fourth Proportional to 375,707.98, 518,400.39 and 222,678.70

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Solution

The fourth proportional to 375,707.98, 518,400.39 and 222,678.70 is: 307,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,707.98 : 518,400.39 = 222,678.70 : x
  2. Step 2: Convert to fraction form
    375,707.98/518,400.39 = 222,678.70/x
  3. Step 3: Cross multiply
    375,707.98x = 518,400.39 × 222,678.70
  4. Step 4: Simplify right side
    375,707.98x = 115,436,724,924.69
  5. Step 5: Solve for x
    x = 115,436,724,924.69/375,707.98
  6. Step 6: Final answer
    x = 307,251.19

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1.5x scale

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.