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Finding the Fourth Proportional to 371,677.65, 512,898.72 and 210,529.46

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Solution

The fourth proportional to 371,677.65, 512,898.72 and 210,529.46 is: 290,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,677.65 : 512,898.72 = 210,529.46 : x
  2. Step 2: Convert to fraction form
    371,677.65/512,898.72 = 210,529.46/x
  3. Step 3: Cross multiply
    371,677.65x = 512,898.72 × 210,529.46
  4. Step 4: Simplify right side
    371,677.65x = 107,980,290,556.29
  5. Step 5: Solve for x
    x = 107,980,290,556.29/371,677.65
  6. Step 6: Final answer
    x = 290,521.34

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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.