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Finding the Fourth Proportional to 260,574.43, 390,919.02 and 148,307.49

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Solution

The fourth proportional to 260,574.43, 390,919.02 and 148,307.49 is: 222,493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,574.43 : 390,919.02 = 148,307.49 : x
  2. Step 2: Convert to fraction form
    260,574.43/390,919.02 = 148,307.49/x
  3. Step 3: Cross multiply
    260,574.43x = 390,919.02 × 148,307.49
  4. Step 4: Simplify right side
    260,574.43x = 57,976,216,694.86
  5. Step 5: Solve for x
    x = 57,976,216,694.86/260,574.43
  6. Step 6: Final answer
    x = 222,493.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.