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Finding the Fourth Proportional to 183,898.40, 253,764.18 and 103,319.60

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Solution

The fourth proportional to 183,898.40, 253,764.18 and 103,319.60 is: 142,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,898.40 : 253,764.18 = 103,319.60 : x
  2. Step 2: Convert to fraction form
    183,898.40/253,764.18 = 103,319.60/x
  3. Step 3: Cross multiply
    183,898.40x = 253,764.18 × 103,319.60
  4. Step 4: Simplify right side
    183,898.40x = 26,218,813,571.93
  5. Step 5: Solve for x
    x = 26,218,813,571.93/183,898.40
  6. Step 6: Final answer
    x = 142,572.28

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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.