Home / 247,109.12-340,755.86-211,417.28

Finding the Fourth Proportional to 247,109.12, 340,755.86 and 211,417.28

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Solution

The fourth proportional to 247,109.12, 340,755.86 and 211,417.28 is: 291,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,109.12 : 340,755.86 = 211,417.28 : x
  2. Step 2: Convert to fraction form
    247,109.12/340,755.86 = 211,417.28/x
  3. Step 3: Cross multiply
    247,109.12x = 340,755.86 × 211,417.28
  4. Step 4: Simplify right side
    247,109.12x = 72,041,677,065.26
  5. Step 5: Solve for x
    x = 72,041,677,065.26/247,109.12
  6. Step 6: Final answer
    x = 291,537.91

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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.