Home / 380,868.48-571,377.45-140,984.48

Finding the Fourth Proportional to 380,868.48, 571,377.45 and 140,984.48

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Solution

The fourth proportional to 380,868.48, 571,377.45 and 140,984.48 is: 211,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,868.48 : 571,377.45 = 140,984.48 : x
  2. Step 2: Convert to fraction form
    380,868.48/571,377.45 = 140,984.48/x
  3. Step 3: Cross multiply
    380,868.48x = 571,377.45 × 140,984.48
  4. Step 4: Simplify right side
    380,868.48x = 80,555,352,671.98
  5. Step 5: Solve for x
    x = 80,555,352,671.98/380,868.48
  6. Step 6: Final answer
    x = 211,504.38

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Double scale
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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.