Home / 253,288.32-379,792.02-103,633.68

Finding the Fourth Proportional to 253,288.32, 379,792.02 and 103,633.68

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Solution

The fourth proportional to 253,288.32, 379,792.02 and 103,633.68 is: 155,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,288.32 : 379,792.02 = 103,633.68 : x
  2. Step 2: Convert to fraction form
    253,288.32/379,792.02 = 103,633.68/x
  3. Step 3: Cross multiply
    253,288.32x = 379,792.02 × 103,633.68
  4. Step 4: Simplify right side
    253,288.32x = 39,359,244,667.23
  5. Step 5: Solve for x
    x = 39,359,244,667.23/253,288.32
  6. Step 6: Final answer
    x = 155,393.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.