Home / 282,735.43-390,175.19-155,408.29

Finding the Fourth Proportional to 282,735.43, 390,175.19 and 155,408.29

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Solution

The fourth proportional to 282,735.43, 390,175.19 and 155,408.29 is: 214,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,735.43 : 390,175.19 = 155,408.29 : x
  2. Step 2: Convert to fraction form
    282,735.43/390,175.19 = 155,408.29/x
  3. Step 3: Cross multiply
    282,735.43x = 390,175.19 × 155,408.29
  4. Step 4: Simplify right side
    282,735.43x = 60,636,459,078.33
  5. Step 5: Solve for x
    x = 60,636,459,078.33/282,735.43
  6. Step 6: Final answer
    x = 214,463.60

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1.5x scale

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.