Home / 400,910.90-553,047.32-247,900.19

Finding the Fourth Proportional to 400,910.90, 553,047.32 and 247,900.19

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Solution

The fourth proportional to 400,910.90, 553,047.32 and 247,900.19 is: 341,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,910.90 : 553,047.32 = 247,900.19 : x
  2. Step 2: Convert to fraction form
    400,910.90/553,047.32 = 247,900.19/x
  3. Step 3: Cross multiply
    400,910.90x = 553,047.32 × 247,900.19
  4. Step 4: Simplify right side
    400,910.90x = 137,100,531,702.25
  5. Step 5: Solve for x
    x = 137,100,531,702.25/400,910.90
  6. Step 6: Final answer
    x = 341,972.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.