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Finding the Fourth Proportional to 214,163.61, 321,246.16 and 54,239.51

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Solution

The fourth proportional to 214,163.61, 321,246.16 and 54,239.51 is: 81,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,163.61 : 321,246.16 = 54,239.51 : x
  2. Step 2: Convert to fraction form
    214,163.61/321,246.16 = 54,239.51/x
  3. Step 3: Cross multiply
    214,163.61x = 321,246.16 × 54,239.51
  4. Step 4: Simplify right side
    214,163.61x = 17,424,232,565.95
  5. Step 5: Solve for x
    x = 17,424,232,565.95/214,163.61
  6. Step 6: Final answer
    x = 81,359.45

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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.