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Finding the Fourth Proportional to 367,891.20, 507,682.08 and 217,036.80

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Solution

The fourth proportional to 367,891.20, 507,682.08 and 217,036.80 is: 299,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,891.20 : 507,682.08 = 217,036.80 : x
  2. Step 2: Convert to fraction form
    367,891.20/507,682.08 = 217,036.80/x
  3. Step 3: Cross multiply
    367,891.20x = 507,682.08 × 217,036.80
  4. Step 4: Simplify right side
    367,891.20x = 110,185,694,060.54
  5. Step 5: Solve for x
    x = 110,185,694,060.54/367,891.20
  6. Step 6: Final answer
    x = 299,506.20

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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.