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Finding the Fourth Proportional to 353,339.67, 487,621.67 and 202,465.83

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Solution

The fourth proportional to 353,339.67, 487,621.67 and 202,465.83 is: 279,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,339.67 : 487,621.67 = 202,465.83 : x
  2. Step 2: Convert to fraction form
    353,339.67/487,621.67 = 202,465.83/x
  3. Step 3: Cross multiply
    353,339.67x = 487,621.67 × 202,465.83
  4. Step 4: Simplify right side
    353,339.67x = 98,726,725,130.21
  5. Step 5: Solve for x
    x = 98,726,725,130.21/353,339.67
  6. Step 6: Final answer
    x = 279,410.25

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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.