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Finding the Fourth Proportional to 261,880.53, 361,442.21 and 154,444.29

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Solution

The fourth proportional to 261,880.53, 361,442.21 and 154,444.29 is: 213,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,880.53 : 361,442.21 = 154,444.29 : x
  2. Step 2: Convert to fraction form
    261,880.53/361,442.21 = 154,444.29/x
  3. Step 3: Cross multiply
    261,880.53x = 361,442.21 × 154,444.29
  4. Step 4: Simplify right side
    261,880.53x = 55,822,685,499.48
  5. Step 5: Solve for x
    x = 55,822,685,499.48/261,880.53
  6. Step 6: Final answer
    x = 213,160.88

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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.