Home / 314,910.45-472,529.70-137,435.40

Finding the Fourth Proportional to 314,910.45, 472,529.70 and 137,435.40

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Solution

The fourth proportional to 314,910.45, 472,529.70 and 137,435.40 is: 206,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,910.45 : 472,529.70 = 137,435.40 : x
  2. Step 2: Convert to fraction form
    314,910.45/472,529.70 = 137,435.40/x
  3. Step 3: Cross multiply
    314,910.45x = 472,529.70 × 137,435.40
  4. Step 4: Simplify right side
    314,910.45x = 64,942,308,331.38
  5. Step 5: Solve for x
    x = 64,942,308,331.38/314,910.45
  6. Step 6: Final answer
    x = 206,224.68

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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.