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Finding the Fourth Proportional to 423,552.36, 635,445.18 and 143,266.44

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Solution

The fourth proportional to 423,552.36, 635,445.18 and 143,266.44 is: 214,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,552.36 : 635,445.18 = 143,266.44 : x
  2. Step 2: Convert to fraction form
    423,552.36/635,445.18 = 143,266.44/x
  3. Step 3: Cross multiply
    423,552.36x = 635,445.18 × 143,266.44
  4. Step 4: Simplify right side
    423,552.36x = 91,037,968,753.76
  5. Step 5: Solve for x
    x = 91,037,968,753.76/423,552.36
  6. Step 6: Final answer
    x = 214,939.11

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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.