Home / 279,440.57-385,626.06-152,115.86

Finding the Fourth Proportional to 279,440.57, 385,626.06 and 152,115.86

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Solution

The fourth proportional to 279,440.57, 385,626.06 and 152,115.86 is: 209,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,440.57 : 385,626.06 = 152,115.86 : x
  2. Step 2: Convert to fraction form
    279,440.57/385,626.06 = 152,115.86/x
  3. Step 3: Cross multiply
    279,440.57x = 385,626.06 × 152,115.86
  4. Step 4: Simplify right side
    279,440.57x = 58,659,837,827.18
  5. Step 5: Solve for x
    x = 58,659,837,827.18/279,440.57
  6. Step 6: Final answer
    x = 209,918.83

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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.