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Finding the Fourth Proportional to 309,528.68, 427,238.15 and 182,278.08

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Solution

The fourth proportional to 309,528.68, 427,238.15 and 182,278.08 is: 251,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,528.68 : 427,238.15 = 182,278.08 : x
  2. Step 2: Convert to fraction form
    309,528.68/427,238.15 = 182,278.08/x
  3. Step 3: Cross multiply
    309,528.68x = 427,238.15 × 182,278.08
  4. Step 4: Simplify right side
    309,528.68x = 77,876,148,773.36
  5. Step 5: Solve for x
    x = 77,876,148,773.36/309,528.68
  6. Step 6: Final answer
    x = 251,595.91

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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.