Home / 282,976.56-390,501.20-155,649.44

Finding the Fourth Proportional to 282,976.56, 390,501.20 and 155,649.44

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Solution

The fourth proportional to 282,976.56, 390,501.20 and 155,649.44 is: 214,792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,976.56 : 390,501.20 = 155,649.44 : x
  2. Step 2: Convert to fraction form
    282,976.56/390,501.20 = 155,649.44/x
  3. Step 3: Cross multiply
    282,976.56x = 390,501.20 × 155,649.44
  4. Step 4: Simplify right side
    282,976.56x = 60,781,293,099.33
  5. Step 5: Solve for x
    x = 60,781,293,099.33/282,976.56
  6. Step 6: Final answer
    x = 214,792.68

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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.