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Finding the Fourth Proportional to 255,221.99, 352,200.13 and 140,499.70

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Solution

The fourth proportional to 255,221.99, 352,200.13 and 140,499.70 is: 193,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,221.99 : 352,200.13 = 140,499.70 : x
  2. Step 2: Convert to fraction form
    255,221.99/352,200.13 = 140,499.70/x
  3. Step 3: Cross multiply
    255,221.99x = 352,200.13 × 140,499.70
  4. Step 4: Simplify right side
    255,221.99x = 49,484,011,373.21
  5. Step 5: Solve for x
    x = 49,484,011,373.21/255,221.99
  6. Step 6: Final answer
    x = 193,886.16

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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.