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Finding the Fourth Proportional to 272,448.32, 408,326.40 and 122,528.48

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Solution

The fourth proportional to 272,448.32, 408,326.40 and 122,528.48 is: 183,637.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,448.32 : 408,326.40 = 122,528.48 : x
  2. Step 2: Convert to fraction form
    272,448.32/408,326.40 = 122,528.48/x
  3. Step 3: Cross multiply
    272,448.32x = 408,326.40 × 122,528.48
  4. Step 4: Simplify right side
    272,448.32x = 50,031,613,135.87
  5. Step 5: Solve for x
    x = 50,031,613,135.87/272,448.32
  6. Step 6: Final answer
    x = 183,637.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.