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Finding the Fourth Proportional to 276,874.08, 415,019.52 and 143,612.88

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Solution

The fourth proportional to 276,874.08, 415,019.52 and 143,612.88 is: 215,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,874.08 : 415,019.52 = 143,612.88 : x
  2. Step 2: Convert to fraction form
    276,874.08/415,019.52 = 143,612.88/x
  3. Step 3: Cross multiply
    276,874.08x = 415,019.52 × 143,612.88
  4. Step 4: Simplify right side
    276,874.08x = 59,602,148,523.42
  5. Step 5: Solve for x
    x = 59,602,148,523.42/276,874.08
  6. Step 6: Final answer
    x = 215,268.07

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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.