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Finding the Fourth Proportional to 381,341.60, 526,251.48 and 211,575.32

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Solution

The fourth proportional to 381,341.60, 526,251.48 and 211,575.32 is: 291,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,341.60 : 526,251.48 = 211,575.32 : x
  2. Step 2: Convert to fraction form
    381,341.60/526,251.48 = 211,575.32/x
  3. Step 3: Cross multiply
    381,341.60x = 526,251.48 × 211,575.32
  4. Step 4: Simplify right side
    381,341.60x = 111,341,826,068.16
  5. Step 5: Solve for x
    x = 111,341,826,068.16/381,341.60
  6. Step 6: Final answer
    x = 291,973.98

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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.