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Finding the Fourth Proportional to 343,695.45, 474,278.22 and 207,648.98

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Solution

The fourth proportional to 343,695.45, 474,278.22 and 207,648.98 is: 286,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,695.45 : 474,278.22 = 207,648.98 : x
  2. Step 2: Convert to fraction form
    343,695.45/474,278.22 = 207,648.98/x
  3. Step 3: Cross multiply
    343,695.45x = 474,278.22 × 207,648.98
  4. Step 4: Simplify right side
    343,695.45x = 98,483,388,619.22
  5. Step 5: Solve for x
    x = 98,483,388,619.22/343,695.45
  6. Step 6: Final answer
    x = 286,542.60

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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.