Home / 280,268.46-386,778.69-152,952.21

Finding the Fourth Proportional to 280,268.46, 386,778.69 and 152,952.21

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Solution

The fourth proportional to 280,268.46, 386,778.69 and 152,952.21 is: 211,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,268.46 : 386,778.69 = 152,952.21 : x
  2. Step 2: Convert to fraction form
    280,268.46/386,778.69 = 152,952.21/x
  3. Step 3: Cross multiply
    280,268.46x = 386,778.69 × 152,952.21
  4. Step 4: Simplify right side
    280,268.46x = 59,158,655,416.40
  5. Step 5: Solve for x
    x = 59,158,655,416.40/280,268.46
  6. Step 6: Final answer
    x = 211,078.53

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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.