Home / 367,789.40-551,684.10-218,490.20

Finding the Fourth Proportional to 367,789.40, 551,684.10 and 218,490.20

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Solution

The fourth proportional to 367,789.40, 551,684.10 and 218,490.20 is: 327,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,789.40 : 551,684.10 = 218,490.20 : x
  2. Step 2: Convert to fraction form
    367,789.40/551,684.10 = 218,490.20/x
  3. Step 3: Cross multiply
    367,789.40x = 551,684.10 × 218,490.20
  4. Step 4: Simplify right side
    367,789.40x = 120,537,569,345.82
  5. Step 5: Solve for x
    x = 120,537,569,345.82/367,789.40
  6. Step 6: Final answer
    x = 327,735.30

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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.