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Finding the Fourth Proportional to 288,851.58, 398,607.75 and 159,794.91

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Solution

The fourth proportional to 288,851.58, 398,607.75 and 159,794.91 is: 220,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,851.58 : 398,607.75 = 159,794.91 : x
  2. Step 2: Convert to fraction form
    288,851.58/398,607.75 = 159,794.91/x
  3. Step 3: Cross multiply
    288,851.58x = 398,607.75 × 159,794.91
  4. Step 4: Simplify right side
    288,851.58x = 63,695,489,536.55
  5. Step 5: Solve for x
    x = 63,695,489,536.55/288,851.58
  6. Step 6: Final answer
    x = 220,512.87

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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.