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Finding the Fourth Proportional to 253,459.67, 349,785.39 and 140,282.39

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Solution

The fourth proportional to 253,459.67, 349,785.39 and 140,282.39 is: 193,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,459.67 : 349,785.39 = 140,282.39 : x
  2. Step 2: Convert to fraction form
    253,459.67/349,785.39 = 140,282.39/x
  3. Step 3: Cross multiply
    253,459.67x = 349,785.39 × 140,282.39
  4. Step 4: Simplify right side
    253,459.67x = 49,068,730,496.28
  5. Step 5: Solve for x
    x = 49,068,730,496.28/253,459.67
  6. Step 6: Final answer
    x = 193,595.81

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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.