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Finding the Fourth Proportional to 355,373.61, 490,414.77 and 202,411.77

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Solution

The fourth proportional to 355,373.61, 490,414.77 and 202,411.77 is: 279,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,373.61 : 490,414.77 = 202,411.77 : x
  2. Step 2: Convert to fraction form
    355,373.61/490,414.77 = 202,411.77/x
  3. Step 3: Cross multiply
    355,373.61x = 490,414.77 × 202,411.77
  4. Step 4: Simplify right side
    355,373.61x = 99,265,721,629.84
  5. Step 5: Solve for x
    x = 99,265,721,629.84/355,373.61
  6. Step 6: Final answer
    x = 279,327.78

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1.5x scale

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.