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Finding the Fourth Proportional to 272,076.26, 375,648.16 and 243,306.40

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Solution

The fourth proportional to 272,076.26, 375,648.16 and 243,306.40 is: 335,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,076.26 : 375,648.16 = 243,306.40 : x
  2. Step 2: Convert to fraction form
    272,076.26/375,648.16 = 243,306.40/x
  3. Step 3: Cross multiply
    272,076.26x = 375,648.16 × 243,306.40
  4. Step 4: Simplify right side
    272,076.26x = 91,397,601,476.22
  5. Step 5: Solve for x
    x = 91,397,601,476.22/272,076.26
  6. Step 6: Final answer
    x = 335,926.41

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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.