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Finding the Fourth Proportional to 341,420.80, 512,131.20 and 163,836.40

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Solution

The fourth proportional to 341,420.80, 512,131.20 and 163,836.40 is: 245,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,420.80 : 512,131.20 = 163,836.40 : x
  2. Step 2: Convert to fraction form
    341,420.80/512,131.20 = 163,836.40/x
  3. Step 3: Cross multiply
    341,420.80x = 512,131.20 × 163,836.40
  4. Step 4: Simplify right side
    341,420.80x = 83,905,732,135.68
  5. Step 5: Solve for x
    x = 83,905,732,135.68/341,420.80
  6. Step 6: Final answer
    x = 245,754.60

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1.5x scale

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.