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Finding the Fourth Proportional to 203,443.08, 280,883.24 and 130,878.42

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Solution

The fourth proportional to 203,443.08, 280,883.24 and 130,878.42 is: 180,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,443.08 : 280,883.24 = 130,878.42 : x
  2. Step 2: Convert to fraction form
    203,443.08/280,883.24 = 130,878.42/x
  3. Step 3: Cross multiply
    203,443.08x = 280,883.24 × 130,878.42
  4. Step 4: Simplify right side
    203,443.08x = 36,761,554,001.29
  5. Step 5: Solve for x
    x = 36,761,554,001.29/203,443.08
  6. Step 6: Final answer
    x = 180,697.00

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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.