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Finding the Fourth Proportional to 272,351.64, 375,845.25 and 153,119.64

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Solution

The fourth proportional to 272,351.64, 375,845.25 and 153,119.64 is: 211,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,351.64 : 375,845.25 = 153,119.64 : x
  2. Step 2: Convert to fraction form
    272,351.64/375,845.25 = 153,119.64/x
  3. Step 3: Cross multiply
    272,351.64x = 375,845.25 × 153,119.64
  4. Step 4: Simplify right side
    272,351.64x = 57,549,289,375.71
  5. Step 5: Solve for x
    x = 57,549,289,375.71/272,351.64
  6. Step 6: Final answer
    x = 211,305.10

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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.