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Finding the Fourth Proportional to 283,162.54, 390,676.35 and 160,634.80

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Solution

The fourth proportional to 283,162.54, 390,676.35 and 160,634.80 is: 221,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,162.54 : 390,676.35 = 160,634.80 : x
  2. Step 2: Convert to fraction form
    283,162.54/390,676.35 = 160,634.80/x
  3. Step 3: Cross multiply
    283,162.54x = 390,676.35 × 160,634.80
  4. Step 4: Simplify right side
    283,162.54x = 62,756,217,346.98
  5. Step 5: Solve for x
    x = 62,756,217,346.98/283,162.54
  6. Step 6: Final answer
    x = 221,626.13

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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.