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Finding the Fourth Proportional to 338,690.40, 467,443.85 and 216,235.10

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Solution

The fourth proportional to 338,690.40, 467,443.85 and 216,235.10 is: 298,437.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,690.40 : 467,443.85 = 216,235.10 : x
  2. Step 2: Convert to fraction form
    338,690.40/467,443.85 = 216,235.10/x
  3. Step 3: Cross multiply
    338,690.40x = 467,443.85 × 216,235.10
  4. Step 4: Simplify right side
    338,690.40x = 101,077,764,230.74
  5. Step 5: Solve for x
    x = 101,077,764,230.74/338,690.40
  6. Step 6: Final answer
    x = 298,437.05

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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.