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Finding the Fourth Proportional to 342,903.44, 514,210.84 and 129,635.28

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Solution

The fourth proportional to 342,903.44, 514,210.84 and 129,635.28 is: 194,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,903.44 : 514,210.84 = 129,635.28 : x
  2. Step 2: Convert to fraction form
    342,903.44/514,210.84 = 129,635.28/x
  3. Step 3: Cross multiply
    342,903.44x = 514,210.84 × 129,635.28
  4. Step 4: Simplify right side
    342,903.44x = 66,659,866,222.44
  5. Step 5: Solve for x
    x = 66,659,866,222.44/342,903.44
  6. Step 6: Final answer
    x = 194,398.36

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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.