Home / 278,432.48-384,091.68-171,026.72

Finding the Fourth Proportional to 278,432.48, 384,091.68 and 171,026.72

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Solution

The fourth proportional to 278,432.48, 384,091.68 and 171,026.72 is: 235,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,432.48 : 384,091.68 = 171,026.72 : x
  2. Step 2: Convert to fraction form
    278,432.48/384,091.68 = 171,026.72/x
  3. Step 3: Cross multiply
    278,432.48x = 384,091.68 × 171,026.72
  4. Step 4: Simplify right side
    278,432.48x = 65,689,940,209.69
  5. Step 5: Solve for x
    x = 65,689,940,209.69/278,432.48
  6. Step 6: Final answer
    x = 235,927.72

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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.