Home / 278,960.33-384,965.51-151,635.93

Finding the Fourth Proportional to 278,960.33, 384,965.51 and 151,635.93

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Solution

The fourth proportional to 278,960.33, 384,965.51 and 151,635.93 is: 209,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,960.33 : 384,965.51 = 151,635.93 : x
  2. Step 2: Convert to fraction form
    278,960.33/384,965.51 = 151,635.93/x
  3. Step 3: Cross multiply
    278,960.33x = 384,965.51 × 151,635.93
  4. Step 4: Simplify right side
    278,960.33x = 58,374,603,126.77
  5. Step 5: Solve for x
    x = 58,374,603,126.77/278,960.33
  6. Step 6: Final answer
    x = 209,257.72

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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.