Home / 279,837.06-386,163.90-152,509.92

Finding the Fourth Proportional to 279,837.06, 386,163.90 and 152,509.92

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Solution

The fourth proportional to 279,837.06, 386,163.90 and 152,509.92 is: 210,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,837.06 : 386,163.90 = 152,509.92 : x
  2. Step 2: Convert to fraction form
    279,837.06/386,163.90 = 152,509.92/x
  3. Step 3: Cross multiply
    279,837.06x = 386,163.90 × 152,509.92
  4. Step 4: Simplify right side
    279,837.06x = 58,893,825,495.89
  5. Step 5: Solve for x
    x = 58,893,825,495.89/279,837.06
  6. Step 6: Final answer
    x = 210,457.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.