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Finding the Fourth Proportional to 288,601.60, 398,012.34 and 181,181.62

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Solution

The fourth proportional to 288,601.60, 398,012.34 and 181,181.62 is: 249,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,601.60 : 398,012.34 = 181,181.62 : x
  2. Step 2: Convert to fraction form
    288,601.60/398,012.34 = 181,181.62/x
  3. Step 3: Cross multiply
    288,601.60x = 398,012.34 × 181,181.62
  4. Step 4: Simplify right side
    288,601.60x = 72,112,520,541.19
  5. Step 5: Solve for x
    x = 72,112,520,541.19/288,601.60
  6. Step 6: Final answer
    x = 249,868.75

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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.