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Finding the Fourth Proportional to 256,830.82, 385,150.44 and 88,303.44

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Solution

The fourth proportional to 256,830.82, 385,150.44 and 88,303.44 is: 132,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,830.82 : 385,150.44 = 88,303.44 : x
  2. Step 2: Convert to fraction form
    256,830.82/385,150.44 = 88,303.44/x
  3. Step 3: Cross multiply
    256,830.82x = 385,150.44 × 88,303.44
  4. Step 4: Simplify right side
    256,830.82x = 34,010,108,769.51
  5. Step 5: Solve for x
    x = 34,010,108,769.51/256,830.82
  6. Step 6: Final answer
    x = 132,422.23

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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.