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Finding the Fourth Proportional to 267,435.20, 401,152.80 and 214,947.20

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Solution

The fourth proportional to 267,435.20, 401,152.80 and 214,947.20 is: 322,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,435.20 : 401,152.80 = 214,947.20 : x
  2. Step 2: Convert to fraction form
    267,435.20/401,152.80 = 214,947.20/x
  3. Step 3: Cross multiply
    267,435.20x = 401,152.80 × 214,947.20
  4. Step 4: Simplify right side
    267,435.20x = 86,226,671,132.16
  5. Step 5: Solve for x
    x = 86,226,671,132.16/267,435.20
  6. Step 6: Final answer
    x = 322,420.80

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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.