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Finding the Fourth Proportional to 371,618.51, 512,833.10 and 210,504.62

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Solution

The fourth proportional to 371,618.51, 512,833.10 and 210,504.62 is: 290,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,618.51 : 512,833.10 = 210,504.62 : x
  2. Step 2: Convert to fraction form
    371,618.51/512,833.10 = 210,504.62/x
  3. Step 3: Cross multiply
    371,618.51x = 512,833.10 × 210,504.62
  4. Step 4: Simplify right side
    371,618.51x = 107,953,737,068.48
  5. Step 5: Solve for x
    x = 107,953,737,068.48/371,618.51
  6. Step 6: Final answer
    x = 290,496.13

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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.