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Finding the Fourth Proportional to 343,420.33, 473,949.17 and 190,507.79

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Solution

The fourth proportional to 343,420.33, 473,949.17 and 190,507.79 is: 262,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,420.33 : 473,949.17 = 190,507.79 : x
  2. Step 2: Convert to fraction form
    343,420.33/473,949.17 = 190,507.79/x
  3. Step 3: Cross multiply
    343,420.33x = 473,949.17 × 190,507.79
  4. Step 4: Simplify right side
    343,420.33x = 90,291,007,996.50
  5. Step 5: Solve for x
    x = 90,291,007,996.50/343,420.33
  6. Step 6: Final answer
    x = 262,916.90

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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.