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Finding the Fourth Proportional to 267,216.56, 400,730.20 and 77,637.44

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Solution

The fourth proportional to 267,216.56, 400,730.20 and 77,637.44 is: 116,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,216.56 : 400,730.20 = 77,637.44 : x
  2. Step 2: Convert to fraction form
    267,216.56/400,730.20 = 77,637.44/x
  3. Step 3: Cross multiply
    267,216.56x = 400,730.20 × 77,637.44
  4. Step 4: Simplify right side
    267,216.56x = 31,111,666,858.69
  5. Step 5: Solve for x
    x = 31,111,666,858.69/267,216.56
  6. Step 6: Final answer
    x = 116,428.66

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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.