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Finding the Fourth Proportional to 381,833.60, 526,899.51 and 220,699.08

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Solution

The fourth proportional to 381,833.60, 526,899.51 and 220,699.08 is: 304,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,833.60 : 526,899.51 = 220,699.08 : x
  2. Step 2: Convert to fraction form
    381,833.60/526,899.51 = 220,699.08/x
  3. Step 3: Cross multiply
    381,833.60x = 526,899.51 × 220,699.08
  4. Step 4: Simplify right side
    381,833.60x = 116,286,237,109.45
  5. Step 5: Solve for x
    x = 116,286,237,109.45/381,833.60
  6. Step 6: Final answer
    x = 304,546.90

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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.