Home / 288,985.95-398,812.82-178,629.12

Finding the Fourth Proportional to 288,985.95, 398,812.82 and 178,629.12

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Solution

The fourth proportional to 288,985.95, 398,812.82 and 178,629.12 is: 246,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,985.95 : 398,812.82 = 178,629.12 : x
  2. Step 2: Convert to fraction form
    288,985.95/398,812.82 = 178,629.12/x
  3. Step 3: Cross multiply
    288,985.95x = 398,812.82 × 178,629.12
  4. Step 4: Simplify right side
    288,985.95x = 71,239,582,188.17
  5. Step 5: Solve for x
    x = 71,239,582,188.17/288,985.95
  6. Step 6: Final answer
    x = 246,515.73

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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.