Home / 278,000.51-417,000.76-67,636.62

Finding the Fourth Proportional to 278,000.51, 417,000.76 and 67,636.62

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Solution

The fourth proportional to 278,000.51, 417,000.76 and 67,636.62 is: 101,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,000.51 : 417,000.76 = 67,636.62 : x
  2. Step 2: Convert to fraction form
    278,000.51/417,000.76 = 67,636.62/x
  3. Step 3: Cross multiply
    278,000.51x = 417,000.76 × 67,636.62
  4. Step 4: Simplify right side
    278,000.51x = 28,204,521,774.74
  5. Step 5: Solve for x
    x = 28,204,521,774.74/278,000.51
  6. Step 6: Final answer
    x = 101,454.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.