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Finding the Fourth Proportional to 353,952.02, 488,454.45 and 210,717.02

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Solution

The fourth proportional to 353,952.02, 488,454.45 and 210,717.02 is: 290,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,952.02 : 488,454.45 = 210,717.02 : x
  2. Step 2: Convert to fraction form
    353,952.02/488,454.45 = 210,717.02/x
  3. Step 3: Cross multiply
    353,952.02x = 488,454.45 × 210,717.02
  4. Step 4: Simplify right side
    353,952.02x = 102,925,666,109.74
  5. Step 5: Solve for x
    x = 102,925,666,109.74/353,952.02
  6. Step 6: Final answer
    x = 290,789.88

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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.