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Finding the Fourth Proportional to 268,464.40, 403,003.80 and 157,718.80

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Solution

The fourth proportional to 268,464.40, 403,003.80 and 157,718.80 is: 236,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,464.40 : 403,003.80 = 157,718.80 : x
  2. Step 2: Convert to fraction form
    268,464.40/403,003.80 = 157,718.80/x
  3. Step 3: Cross multiply
    268,464.40x = 403,003.80 × 157,718.80
  4. Step 4: Simplify right side
    268,464.40x = 63,561,275,731.44
  5. Step 5: Solve for x
    x = 63,561,275,731.44/268,464.40
  6. Step 6: Final answer
    x = 236,758.68

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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.