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Finding the Fourth Proportional to 247,047.36, 370,480.24 and 84,895.40

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Solution

The fourth proportional to 247,047.36, 370,480.24 and 84,895.40 is: 127,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,047.36 : 370,480.24 = 84,895.40 : x
  2. Step 2: Convert to fraction form
    247,047.36/370,480.24 = 84,895.40/x
  3. Step 3: Cross multiply
    247,047.36x = 370,480.24 × 84,895.40
  4. Step 4: Simplify right side
    247,047.36x = 31,452,068,166.90
  5. Step 5: Solve for x
    x = 31,452,068,166.90/247,047.36
  6. Step 6: Final answer
    x = 127,311.90

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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.