Home / 282,778.27-390,241.46-155,457.07

Finding the Fourth Proportional to 282,778.27, 390,241.46 and 155,457.07

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Solution

The fourth proportional to 282,778.27, 390,241.46 and 155,457.07 is: 214,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,778.27 : 390,241.46 = 155,457.07 : x
  2. Step 2: Convert to fraction form
    282,778.27/390,241.46 = 155,457.07/x
  3. Step 3: Cross multiply
    282,778.27x = 390,241.46 × 155,457.07
  4. Step 4: Simplify right side
    282,778.27x = 60,665,792,794.20
  5. Step 5: Solve for x
    x = 60,665,792,794.20/282,778.27
  6. Step 6: Final answer
    x = 214,534.85

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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.