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Finding the Fourth Proportional to 372,373, 513,835.86 and 211,176.52

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Solution

The fourth proportional to 372,373, 513,835.86 and 211,176.52 is: 291,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,373 : 513,835.86 = 211,176.52 : x
  2. Step 2: Convert to fraction form
    372,373/513,835.86 = 211,176.52/x
  3. Step 3: Cross multiply
    372,373x = 513,835.86 × 211,176.52
  4. Step 4: Simplify right side
    372,373x = 108,510,068,766.01
  5. Step 5: Solve for x
    x = 108,510,068,766.01/372,373
  6. Step 6: Final answer
    x = 291,401.55

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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.