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Finding the Fourth Proportional to 253,395.48, 349,693.02 and 140,228.76

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Solution

The fourth proportional to 253,395.48, 349,693.02 and 140,228.76 is: 193,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,395.48 : 349,693.02 = 140,228.76 : x
  2. Step 2: Convert to fraction form
    253,395.48/349,693.02 = 140,228.76/x
  3. Step 3: Cross multiply
    253,395.48x = 349,693.02 × 140,228.76
  4. Step 4: Simplify right side
    253,395.48x = 49,037,018,575.26
  5. Step 5: Solve for x
    x = 49,037,018,575.26/253,395.48
  6. Step 6: Final answer
    x = 193,519.71

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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.