Home / 247,074.77-340,999.74-156,439.14

Finding the Fourth Proportional to 247,074.77, 340,999.74 and 156,439.14

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Solution

The fourth proportional to 247,074.77, 340,999.74 and 156,439.14 is: 215,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,074.77 : 340,999.74 = 156,439.14 : x
  2. Step 2: Convert to fraction form
    247,074.77/340,999.74 = 156,439.14/x
  3. Step 3: Cross multiply
    247,074.77x = 340,999.74 × 156,439.14
  4. Step 4: Simplify right side
    247,074.77x = 53,345,706,065.82
  5. Step 5: Solve for x
    x = 53,345,706,065.82/247,074.77
  6. Step 6: Final answer
    x = 215,909.16

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1.5x scale

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.