Home / 215,934.40-323,464.20-122,330.80

Finding the Fourth Proportional to 215,934.40, 323,464.20 and 122,330.80

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Solution

The fourth proportional to 215,934.40, 323,464.20 and 122,330.80 is: 183,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,934.40 : 323,464.20 = 122,330.80 : x
  2. Step 2: Convert to fraction form
    215,934.40/323,464.20 = 122,330.80/x
  3. Step 3: Cross multiply
    215,934.40x = 323,464.20 × 122,330.80
  4. Step 4: Simplify right side
    215,934.40x = 39,569,634,357.36
  5. Step 5: Solve for x
    x = 39,569,634,357.36/215,934.40
  6. Step 6: Final answer
    x = 183,248.40

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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.