Home / 261,880.03-361,441.53-154,443.79

Finding the Fourth Proportional to 261,880.03, 361,441.53 and 154,443.79

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Solution

The fourth proportional to 261,880.03, 361,441.53 and 154,443.79 is: 213,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,880.03 : 361,441.53 = 154,443.79 : x
  2. Step 2: Convert to fraction form
    261,880.03/361,441.53 = 154,443.79/x
  3. Step 3: Cross multiply
    261,880.03x = 361,441.53 × 154,443.79
  4. Step 4: Simplify right side
    261,880.03x = 55,822,397,177.17
  5. Step 5: Solve for x
    x = 55,822,397,177.17/261,880.03
  6. Step 6: Final answer
    x = 213,160.19

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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.