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Finding the Fourth Proportional to 340,396.97, 469,810.80 and 197,156.97

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Solution

The fourth proportional to 340,396.97, 469,810.80 and 197,156.97 is: 272,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,396.97 : 469,810.80 = 197,156.97 : x
  2. Step 2: Convert to fraction form
    340,396.97/469,810.80 = 197,156.97/x
  3. Step 3: Cross multiply
    340,396.97x = 469,810.80 × 197,156.97
  4. Step 4: Simplify right side
    340,396.97x = 92,626,473,801.28
  5. Step 5: Solve for x
    x = 92,626,473,801.28/340,396.97
  6. Step 6: Final answer
    x = 272,113.10

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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.