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Finding the Fourth Proportional to 230,645.60, 345,853.20 and 105,845.60

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Solution

The fourth proportional to 230,645.60, 345,853.20 and 105,845.60 is: 158,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,645.60 : 345,853.20 = 105,845.60 : x
  2. Step 2: Convert to fraction form
    230,645.60/345,853.20 = 105,845.60/x
  3. Step 3: Cross multiply
    230,645.60x = 345,853.20 × 105,845.60
  4. Step 4: Simplify right side
    230,645.60x = 36,607,039,465.92
  5. Step 5: Solve for x
    x = 36,607,039,465.92/230,645.60
  6. Step 6: Final answer
    x = 158,715.53

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1.5x scale

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.