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Finding the Fourth Proportional to 230,303.84, 345,193.70 and 140,147.71

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Solution

The fourth proportional to 230,303.84, 345,193.70 and 140,147.71 is: 210,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,303.84 : 345,193.70 = 140,147.71 : x
  2. Step 2: Convert to fraction form
    230,303.84/345,193.70 = 140,147.71/x
  3. Step 3: Cross multiply
    230,303.84x = 345,193.70 × 140,147.71
  4. Step 4: Simplify right side
    230,303.84x = 48,378,106,561.43
  5. Step 5: Solve for x
    x = 48,378,106,561.43/230,303.84
  6. Step 6: Final answer
    x = 210,062.09

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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.