Home / 283,621.23-391,395.42-156,296.94

Finding the Fourth Proportional to 283,621.23, 391,395.42 and 156,296.94

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Solution

The fourth proportional to 283,621.23, 391,395.42 and 156,296.94 is: 215,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,621.23 : 391,395.42 = 156,296.94 : x
  2. Step 2: Convert to fraction form
    283,621.23/391,395.42 = 156,296.94/x
  3. Step 3: Cross multiply
    283,621.23x = 391,395.42 × 156,296.94
  4. Step 4: Simplify right side
    283,621.23x = 61,173,906,476.01
  5. Step 5: Solve for x
    x = 61,173,906,476.01/283,621.23
  6. Step 6: Final answer
    x = 215,688.74

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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.