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Finding the Fourth Proportional to 230,648.70, 345,973.05 and 125,672.70

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Solution

The fourth proportional to 230,648.70, 345,973.05 and 125,672.70 is: 188,509.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,648.70 : 345,973.05 = 125,672.70 : x
  2. Step 2: Convert to fraction form
    230,648.70/345,973.05 = 125,672.70/x
  3. Step 3: Cross multiply
    230,648.70x = 345,973.05 × 125,672.70
  4. Step 4: Simplify right side
    230,648.70x = 43,479,367,320.74
  5. Step 5: Solve for x
    x = 43,479,367,320.74/230,648.70
  6. Step 6: Final answer
    x = 188,509.05

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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.