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Finding the Fourth Proportional to 253,879, 350,353.02 and 140,718.76

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Solution

The fourth proportional to 253,879, 350,353.02 and 140,718.76 is: 194,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,879 : 350,353.02 = 140,718.76 : x
  2. Step 2: Convert to fraction form
    253,879/350,353.02 = 140,718.76/x
  3. Step 3: Cross multiply
    253,879x = 350,353.02 × 140,718.76
  4. Step 4: Simplify right side
    253,879x = 49,301,242,536.66
  5. Step 5: Solve for x
    x = 49,301,242,536.66/253,879
  6. Step 6: Final answer
    x = 194,191.89

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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.