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Finding the Fourth Proportional to 343,063.31, 473,272.10 and 207,053.78

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Solution

The fourth proportional to 343,063.31, 473,272.10 and 207,053.78 is: 285,640.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,063.31 : 473,272.10 = 207,053.78 : x
  2. Step 2: Convert to fraction form
    343,063.31/473,272.10 = 207,053.78/x
  3. Step 3: Cross multiply
    343,063.31x = 473,272.10 × 207,053.78
  4. Step 4: Simplify right side
    343,063.31x = 97,992,775,813.04
  5. Step 5: Solve for x
    x = 97,992,775,813.04/343,063.31
  6. Step 6: Final answer
    x = 285,640.51

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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.