Home / 278,730.35-384,641.42-162,436.41

Finding the Fourth Proportional to 278,730.35, 384,641.42 and 162,436.41

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Solution

The fourth proportional to 278,730.35, 384,641.42 and 162,436.41 is: 224,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,730.35 : 384,641.42 = 162,436.41 : x
  2. Step 2: Convert to fraction form
    278,730.35/384,641.42 = 162,436.41/x
  3. Step 3: Cross multiply
    278,730.35x = 384,641.42 × 162,436.41
  4. Step 4: Simplify right side
    278,730.35x = 62,479,771,402.10
  5. Step 5: Solve for x
    x = 62,479,771,402.10/278,730.35
  6. Step 6: Final answer
    x = 224,158.48

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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.