Home / 330,335.55-455,935.64-217,168.83

Finding the Fourth Proportional to 330,335.55, 455,935.64 and 217,168.83

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Solution

The fourth proportional to 330,335.55, 455,935.64 and 217,168.83 is: 299,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,335.55 : 455,935.64 = 217,168.83 : x
  2. Step 2: Convert to fraction form
    330,335.55/455,935.64 = 217,168.83/x
  3. Step 3: Cross multiply
    330,335.55x = 455,935.64 × 217,168.83
  4. Step 4: Simplify right side
    330,335.55x = 99,015,008,408.26
  5. Step 5: Solve for x
    x = 99,015,008,408.26/330,335.55
  6. Step 6: Final answer
    x = 299,740.70

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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.