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Finding the Fourth Proportional to 269,710.52, 372,197.08 and 154,987.78

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Solution

The fourth proportional to 269,710.52, 372,197.08 and 154,987.78 is: 213,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,710.52 : 372,197.08 = 154,987.78 : x
  2. Step 2: Convert to fraction form
    269,710.52/372,197.08 = 154,987.78/x
  3. Step 3: Cross multiply
    269,710.52x = 372,197.08 × 154,987.78
  4. Step 4: Simplify right side
    269,710.52x = 57,685,999,151.68
  5. Step 5: Solve for x
    x = 57,685,999,151.68/269,710.52
  6. Step 6: Final answer
    x = 213,881.16

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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.