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Finding the Fourth Proportional to 270,017.72, 372,345.32 and 231,903.48

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Solution

The fourth proportional to 270,017.72, 372,345.32 and 231,903.48 is: 319,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,017.72 : 372,345.32 = 231,903.48 : x
  2. Step 2: Convert to fraction form
    270,017.72/372,345.32 = 231,903.48/x
  3. Step 3: Cross multiply
    270,017.72x = 372,345.32 × 231,903.48
  4. Step 4: Simplify right side
    270,017.72x = 86,348,175,469.71
  5. Step 5: Solve for x
    x = 86,348,175,469.71/270,017.72
  6. Step 6: Final answer
    x = 319,787.07

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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.