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Finding the Fourth Proportional to 355,592.52, 490,763.52 and 202,686.48

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Solution

The fourth proportional to 355,592.52, 490,763.52 and 202,686.48 is: 279,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,592.52 : 490,763.52 = 202,686.48 : x
  2. Step 2: Convert to fraction form
    355,592.52/490,763.52 = 202,686.48/x
  3. Step 3: Cross multiply
    355,592.52x = 490,763.52 × 202,686.48
  4. Step 4: Simplify right side
    355,592.52x = 99,471,130,381.21
  5. Step 5: Solve for x
    x = 99,471,130,381.21/355,592.52
  6. Step 6: Final answer
    x = 279,733.47

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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.