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Finding the Fourth Proportional to 341,657.40, 512,947.80 and 199,648.20

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Solution

The fourth proportional to 341,657.40, 512,947.80 and 199,648.20 is: 299,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,657.40 : 512,947.80 = 199,648.20 : x
  2. Step 2: Convert to fraction form
    341,657.40/512,947.80 = 199,648.20/x
  3. Step 3: Cross multiply
    341,657.40x = 512,947.80 × 199,648.20
  4. Step 4: Simplify right side
    341,657.40x = 102,409,104,963.96
  5. Step 5: Solve for x
    x = 102,409,104,963.96/341,657.40
  6. Step 6: Final answer
    x = 299,742.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.