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Finding the Fourth Proportional to 371,577.76, 512,760.13 and 210,433.95

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Solution

The fourth proportional to 371,577.76, 512,760.13 and 210,433.95 is: 290,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,577.76 : 512,760.13 = 210,433.95 : x
  2. Step 2: Convert to fraction form
    371,577.76/512,760.13 = 210,433.95/x
  3. Step 3: Cross multiply
    371,577.76x = 512,760.13 × 210,433.95
  4. Step 4: Simplify right side
    371,577.76x = 107,902,139,032.33
  5. Step 5: Solve for x
    x = 107,902,139,032.33/371,577.76
  6. Step 6: Final answer
    x = 290,389.12

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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.