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Finding the Fourth Proportional to 372,680.72, 514,303.08 and 213,674

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Solution

The fourth proportional to 372,680.72, 514,303.08 and 213,674 is: 294,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,680.72 : 514,303.08 = 213,674 : x
  2. Step 2: Convert to fraction form
    372,680.72/514,303.08 = 213,674/x
  3. Step 3: Cross multiply
    372,680.72x = 514,303.08 × 213,674
  4. Step 4: Simplify right side
    372,680.72x = 109,893,196,315.92
  5. Step 5: Solve for x
    x = 109,893,196,315.92/372,680.72
  6. Step 6: Final answer
    x = 294,872.23

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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.