Home / 215,827.20-323,740.80-171,212.40

Finding the Fourth Proportional to 215,827.20, 323,740.80 and 171,212.40

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Solution

The fourth proportional to 215,827.20, 323,740.80 and 171,212.40 is: 256,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,827.20 : 323,740.80 = 171,212.40 : x
  2. Step 2: Convert to fraction form
    215,827.20/323,740.80 = 171,212.40/x
  3. Step 3: Cross multiply
    215,827.20x = 323,740.80 × 171,212.40
  4. Step 4: Simplify right side
    215,827.20x = 55,428,439,345.92
  5. Step 5: Solve for x
    x = 55,428,439,345.92/215,827.20
  6. Step 6: Final answer
    x = 256,818.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.