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Finding the Fourth Proportional to 285,070.76, 427,479.77 and 151,926.20

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Solution

The fourth proportional to 285,070.76, 427,479.77 and 151,926.20 is: 227,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,070.76 : 427,479.77 = 151,926.20 : x
  2. Step 2: Convert to fraction form
    285,070.76/427,479.77 = 151,926.20/x
  3. Step 3: Cross multiply
    285,070.76x = 427,479.77 × 151,926.20
  4. Step 4: Simplify right side
    285,070.76x = 64,945,375,275.39
  5. Step 5: Solve for x
    x = 64,945,375,275.39/285,070.76
  6. Step 6: Final answer
    x = 227,821.95

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1.5x scale

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.