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Finding the Fourth Proportional to 375,707.48, 518,399.70 and 222,678.20

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Solution

The fourth proportional to 375,707.48, 518,399.70 and 222,678.20 is: 307,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,707.48 : 518,399.70 = 222,678.20 : x
  2. Step 2: Convert to fraction form
    375,707.48/518,399.70 = 222,678.20/x
  3. Step 3: Cross multiply
    375,707.48x = 518,399.70 × 222,678.20
  4. Step 4: Simplify right side
    375,707.48x = 115,436,312,076.54
  5. Step 5: Solve for x
    x = 115,436,312,076.54/375,707.48
  6. Step 6: Final answer
    x = 307,250.50

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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.