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Finding the Fourth Proportional to 355,601.52, 490,714.47 and 202,672.81

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Solution

The fourth proportional to 355,601.52, 490,714.47 and 202,672.81 is: 279,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,601.52 : 490,714.47 = 202,672.81 : x
  2. Step 2: Convert to fraction form
    355,601.52/490,714.47 = 202,672.81/x
  3. Step 3: Cross multiply
    355,601.52x = 490,714.47 × 202,672.81
  4. Step 4: Simplify right side
    355,601.52x = 99,454,478,088.99
  5. Step 5: Solve for x
    x = 99,454,478,088.99/355,601.52
  6. Step 6: Final answer
    x = 279,679.57

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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.