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Finding the Fourth Proportional to 375,707.61, 518,497.71 and 222,836.31

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Solution

The fourth proportional to 375,707.61, 518,497.71 and 222,836.31 is: 307,526.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,707.61 : 518,497.71 = 222,836.31 : x
  2. Step 2: Convert to fraction form
    375,707.61/518,497.71 = 222,836.31/x
  3. Step 3: Cross multiply
    375,707.61x = 518,497.71 × 222,836.31
  4. Step 4: Simplify right side
    375,707.61x = 115,540,116,439.85
  5. Step 5: Solve for x
    x = 115,540,116,439.85/375,707.61
  6. Step 6: Final answer
    x = 307,526.69

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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.