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Finding the Fourth Proportional to 371,898.34, 513,230.54 and 210,748.03

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Solution

The fourth proportional to 371,898.34, 513,230.54 and 210,748.03 is: 290,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,898.34 : 513,230.54 = 210,748.03 : x
  2. Step 2: Convert to fraction form
    371,898.34/513,230.54 = 210,748.03/x
  3. Step 3: Cross multiply
    371,898.34x = 513,230.54 × 210,748.03
  4. Step 4: Simplify right side
    371,898.34x = 108,162,326,523.91
  5. Step 5: Solve for x
    x = 108,162,326,523.91/371,898.34
  6. Step 6: Final answer
    x = 290,838.42

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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.