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Finding the Fourth Proportional to 375,107.40, 517,651.66 and 222,154.28

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Solution

The fourth proportional to 375,107.40, 517,651.66 and 222,154.28 is: 306,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,107.40 : 517,651.66 = 222,154.28 : x
  2. Step 2: Convert to fraction form
    375,107.40/517,651.66 = 222,154.28/x
  3. Step 3: Cross multiply
    375,107.40x = 517,651.66 × 222,154.28
  4. Step 4: Simplify right side
    375,107.40x = 114,998,531,818.11
  5. Step 5: Solve for x
    x = 114,998,531,818.11/375,107.40
  6. Step 6: Final answer
    x = 306,574.95

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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.