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Finding the Fourth Proportional to 372,476, 513,927.24 and 219,520.28

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Solution

The fourth proportional to 372,476, 513,927.24 and 219,520.28 is: 302,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,476 : 513,927.24 = 219,520.28 : x
  2. Step 2: Convert to fraction form
    372,476/513,927.24 = 219,520.28/x
  3. Step 3: Cross multiply
    372,476x = 513,927.24 × 219,520.28
  4. Step 4: Simplify right side
    372,476x = 112,817,451,624.43
  5. Step 5: Solve for x
    x = 112,817,451,624.43/372,476
  6. Step 6: Final answer
    x = 302,885.16

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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.