Home / 261,633.17-361,549.40-222,865.56

Finding the Fourth Proportional to 261,633.17, 361,549.40 and 222,865.56

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Solution

The fourth proportional to 261,633.17, 361,549.40 and 222,865.56 is: 307,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,633.17 : 361,549.40 = 222,865.56 : x
  2. Step 2: Convert to fraction form
    261,633.17/361,549.40 = 222,865.56/x
  3. Step 3: Cross multiply
    261,633.17x = 361,549.40 × 222,865.56
  4. Step 4: Simplify right side
    261,633.17x = 80,576,908,384.34
  5. Step 5: Solve for x
    x = 80,576,908,384.34/261,633.17
  6. Step 6: Final answer
    x = 307,976.65

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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.