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Finding the Fourth Proportional to 353,594.48, 488,141.16 and 272,840.72

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Solution

The fourth proportional to 353,594.48, 488,141.16 and 272,840.72 is: 376,659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,594.48 : 488,141.16 = 272,840.72 : x
  2. Step 2: Convert to fraction form
    353,594.48/488,141.16 = 272,840.72/x
  3. Step 3: Cross multiply
    353,594.48x = 488,141.16 × 272,840.72
  4. Step 4: Simplify right side
    353,594.48x = 133,184,785,556.04
  5. Step 5: Solve for x
    x = 133,184,785,556.04/353,594.48
  6. Step 6: Final answer
    x = 376,659.69

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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.