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Finding the Fourth Proportional to 215,147.58, 296,880.87 and 119,638.86

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Solution

The fourth proportional to 215,147.58, 296,880.87 and 119,638.86 is: 165,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,147.58 : 296,880.87 = 119,638.86 : x
  2. Step 2: Convert to fraction form
    215,147.58/296,880.87 = 119,638.86/x
  3. Step 3: Cross multiply
    215,147.58x = 296,880.87 × 119,638.86
  4. Step 4: Simplify right side
    215,147.58x = 35,518,488,842.61
  5. Step 5: Solve for x
    x = 35,518,488,842.61/215,147.58
  6. Step 6: Final answer
    x = 165,088.95

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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.