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Finding the Fourth Proportional to 268,540.08, 402,810.12 and 127,872.24

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Solution

The fourth proportional to 268,540.08, 402,810.12 and 127,872.24 is: 191,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,540.08 : 402,810.12 = 127,872.24 : x
  2. Step 2: Convert to fraction form
    268,540.08/402,810.12 = 127,872.24/x
  3. Step 3: Cross multiply
    268,540.08x = 402,810.12 × 127,872.24
  4. Step 4: Simplify right side
    268,540.08x = 51,508,232,339.07
  5. Step 5: Solve for x
    x = 51,508,232,339.07/268,540.08
  6. Step 6: Final answer
    x = 191,808.36

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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.