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Finding the Fourth Proportional to 341,854.82, 512,776.56 and 131,538.32

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Solution

The fourth proportional to 341,854.82, 512,776.56 and 131,538.32 is: 197,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,854.82 : 512,776.56 = 131,538.32 : x
  2. Step 2: Convert to fraction form
    341,854.82/512,776.56 = 131,538.32/x
  3. Step 3: Cross multiply
    341,854.82x = 512,776.56 × 131,538.32
  4. Step 4: Simplify right side
    341,854.82x = 67,449,767,237.78
  5. Step 5: Solve for x
    x = 67,449,767,237.78/341,854.82
  6. Step 6: Final answer
    x = 197,305.30

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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.