Home / 247,381.20-371,012.40-69,904.80

Finding the Fourth Proportional to 247,381.20, 371,012.40 and 69,904.80

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Solution

The fourth proportional to 247,381.20, 371,012.40 and 69,904.80 is: 104,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,381.20 : 371,012.40 = 69,904.80 : x
  2. Step 2: Convert to fraction form
    247,381.20/371,012.40 = 69,904.80/x
  3. Step 3: Cross multiply
    247,381.20x = 371,012.40 × 69,904.80
  4. Step 4: Simplify right side
    247,381.20x = 25,935,547,619.52
  5. Step 5: Solve for x
    x = 25,935,547,619.52/247,381.20
  6. Step 6: Final answer
    x = 104,840.41

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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.