Home / 221,186.16-305,140.82-140,570.46

Finding the Fourth Proportional to 221,186.16, 305,140.82 and 140,570.46

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Solution

The fourth proportional to 221,186.16, 305,140.82 and 140,570.46 is: 193,926.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,186.16 : 305,140.82 = 140,570.46 : x
  2. Step 2: Convert to fraction form
    221,186.16/305,140.82 = 140,570.46/x
  3. Step 3: Cross multiply
    221,186.16x = 305,140.82 × 140,570.46
  4. Step 4: Simplify right side
    221,186.16x = 42,893,784,729.32
  5. Step 5: Solve for x
    x = 42,893,784,729.32/221,186.16
  6. Step 6: Final answer
    x = 193,926.17

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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.