Home / 352,851.08-487,011.48-217,001.90

Finding the Fourth Proportional to 352,851.08, 487,011.48 and 217,001.90

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Solution

The fourth proportional to 352,851.08, 487,011.48 and 217,001.90 is: 299,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,851.08 : 487,011.48 = 217,001.90 : x
  2. Step 2: Convert to fraction form
    352,851.08/487,011.48 = 217,001.90/x
  3. Step 3: Cross multiply
    352,851.08x = 487,011.48 × 217,001.90
  4. Step 4: Simplify right side
    352,851.08x = 105,682,416,481.81
  5. Step 5: Solve for x
    x = 105,682,416,481.81/352,851.08
  6. Step 6: Final answer
    x = 299,509.97

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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.