Home / 261,827.71-361,363.28-154,409.56

Finding the Fourth Proportional to 261,827.71, 361,363.28 and 154,409.56

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Solution

The fourth proportional to 261,827.71, 361,363.28 and 154,409.56 is: 213,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,827.71 : 361,363.28 = 154,409.56 : x
  2. Step 2: Convert to fraction form
    261,827.71/361,363.28 = 154,409.56/x
  3. Step 3: Cross multiply
    261,827.71x = 361,363.28 × 154,409.56
  4. Step 4: Simplify right side
    261,827.71x = 55,797,945,064.96
  5. Step 5: Solve for x
    x = 55,797,945,064.96/261,827.71
  6. Step 6: Final answer
    x = 213,109.40

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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.