Home / 247,405.38-371,218.79-142,224.35

Finding the Fourth Proportional to 247,405.38, 371,218.79 and 142,224.35

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Solution

The fourth proportional to 247,405.38, 371,218.79 and 142,224.35 is: 213,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,405.38 : 371,218.79 = 142,224.35 : x
  2. Step 2: Convert to fraction form
    247,405.38/371,218.79 = 142,224.35/x
  3. Step 3: Cross multiply
    247,405.38x = 371,218.79 × 142,224.35
  4. Step 4: Simplify right side
    247,405.38x = 52,796,348,548.32
  5. Step 5: Solve for x
    x = 52,796,348,548.32/247,405.38
  6. Step 6: Final answer
    x = 213,400.16

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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.