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Finding the Fourth Proportional to 351,424.12, 484,964.56 and 190,279.32

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Solution

The fourth proportional to 351,424.12, 484,964.56 and 190,279.32 is: 262,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,424.12 : 484,964.56 = 190,279.32 : x
  2. Step 2: Convert to fraction form
    351,424.12/484,964.56 = 190,279.32/x
  3. Step 3: Cross multiply
    351,424.12x = 484,964.56 × 190,279.32
  4. Step 4: Simplify right side
    351,424.12x = 92,278,726,700.90
  5. Step 5: Solve for x
    x = 92,278,726,700.90/351,424.12
  6. Step 6: Final answer
    x = 262,585.07

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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.