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Finding the Fourth Proportional to 269,571.48, 371,843.80 and 172,742.74

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Solution

The fourth proportional to 269,571.48, 371,843.80 and 172,742.74 is: 238,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,571.48 : 371,843.80 = 172,742.74 : x
  2. Step 2: Convert to fraction form
    269,571.48/371,843.80 = 172,742.74/x
  3. Step 3: Cross multiply
    269,571.48x = 371,843.80 × 172,742.74
  4. Step 4: Simplify right side
    269,571.48x = 64,233,316,864.01
  5. Step 5: Solve for x
    x = 64,233,316,864.01/269,571.48
  6. Step 6: Final answer
    x = 238,279.35

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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.