Home / 280,138.92-386,594.51-152,817.18

Finding the Fourth Proportional to 280,138.92, 386,594.51 and 152,817.18

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Solution

The fourth proportional to 280,138.92, 386,594.51 and 152,817.18 is: 210,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,138.92 : 386,594.51 = 152,817.18 : x
  2. Step 2: Convert to fraction form
    280,138.92/386,594.51 = 152,817.18/x
  3. Step 3: Cross multiply
    280,138.92x = 386,594.51 × 152,817.18
  4. Step 4: Simplify right side
    280,138.92x = 59,078,282,057.60
  5. Step 5: Solve for x
    x = 59,078,282,057.60/280,138.92
  6. Step 6: Final answer
    x = 210,889.23

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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.