Home / 291,701.27-402,545.36-162,638.21

Finding the Fourth Proportional to 291,701.27, 402,545.36 and 162,638.21

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Solution

The fourth proportional to 291,701.27, 402,545.36 and 162,638.21 is: 224,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,701.27 : 402,545.36 = 162,638.21 : x
  2. Step 2: Convert to fraction form
    291,701.27/402,545.36 = 162,638.21/x
  3. Step 3: Cross multiply
    291,701.27x = 402,545.36 × 162,638.21
  4. Step 4: Simplify right side
    291,701.27x = 65,469,256,794.21
  5. Step 5: Solve for x
    x = 65,469,256,794.21/291,701.27
  6. Step 6: Final answer
    x = 224,439.40

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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.