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Finding the Fourth Proportional to 288,670.52, 398,277.82 and 201,453.30

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Solution

The fourth proportional to 288,670.52, 398,277.82 and 201,453.30 is: 277,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,670.52 : 398,277.82 = 201,453.30 : x
  2. Step 2: Convert to fraction form
    288,670.52/398,277.82 = 201,453.30/x
  3. Step 3: Cross multiply
    288,670.52x = 398,277.82 × 201,453.30
  4. Step 4: Simplify right side
    288,670.52x = 80,234,381,130.84
  5. Step 5: Solve for x
    x = 80,234,381,130.84/288,670.52
  6. Step 6: Final answer
    x = 277,944.50

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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.