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Finding the Fourth Proportional to 247,140.40, 370,710.60 and 69,645.10

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Solution

The fourth proportional to 247,140.40, 370,710.60 and 69,645.10 is: 104,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,140.40 : 370,710.60 = 69,645.10 : x
  2. Step 2: Convert to fraction form
    247,140.40/370,710.60 = 69,645.10/x
  3. Step 3: Cross multiply
    247,140.40x = 370,710.60 × 69,645.10
  4. Step 4: Simplify right side
    247,140.40x = 25,818,176,808.06
  5. Step 5: Solve for x
    x = 25,818,176,808.06/247,140.40
  6. Step 6: Final answer
    x = 104,467.65

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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.