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Finding the Fourth Proportional to 371,508.26, 512,688.30 and 210,362.82

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Solution

The fourth proportional to 371,508.26, 512,688.30 and 210,362.82 is: 290,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,508.26 : 512,688.30 = 210,362.82 : x
  2. Step 2: Convert to fraction form
    371,508.26/512,688.30 = 210,362.82/x
  3. Step 3: Cross multiply
    371,508.26x = 512,688.30 × 210,362.82
  4. Step 4: Simplify right side
    371,508.26x = 107,850,556,569.01
  5. Step 5: Solve for x
    x = 107,850,556,569.01/371,508.26
  6. Step 6: Final answer
    x = 290,304.60

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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.