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Finding the Fourth Proportional to 285,298.40, 428,254.80 and 160,882.40

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Solution

The fourth proportional to 285,298.40, 428,254.80 and 160,882.40 is: 241,496.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,298.40 : 428,254.80 = 160,882.40 : x
  2. Step 2: Convert to fraction form
    285,298.40/428,254.80 = 160,882.40/x
  3. Step 3: Cross multiply
    285,298.40x = 428,254.80 × 160,882.40
  4. Step 4: Simplify right side
    285,298.40x = 68,898,660,035.52
  5. Step 5: Solve for x
    x = 68,898,660,035.52/285,298.40
  6. Step 6: Final answer
    x = 241,496.83

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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.