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Finding the Fourth Proportional to 381,572.37, 526,543.52 and 211,793.13

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Solution

The fourth proportional to 381,572.37, 526,543.52 and 211,793.13 is: 292,259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,572.37 : 526,543.52 = 211,793.13 : x
  2. Step 2: Convert to fraction form
    381,572.37/526,543.52 = 211,793.13/x
  3. Step 3: Cross multiply
    381,572.37x = 526,543.52 × 211,793.13
  4. Step 4: Simplify right side
    381,572.37x = 111,518,300,182.02
  5. Step 5: Solve for x
    x = 111,518,300,182.02/381,572.37
  6. Step 6: Final answer
    x = 292,259.89

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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.