Home / 280,035.81-386,336.51-162,085.15

Finding the Fourth Proportional to 280,035.81, 386,336.51 and 162,085.15

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Solution

The fourth proportional to 280,035.81, 386,336.51 and 162,085.15 is: 223,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,035.81 : 386,336.51 = 162,085.15 : x
  2. Step 2: Convert to fraction form
    280,035.81/386,336.51 = 162,085.15/x
  3. Step 3: Cross multiply
    280,035.81x = 386,336.51 × 162,085.15
  4. Step 4: Simplify right side
    280,035.81x = 62,619,409,397.56
  5. Step 5: Solve for x
    x = 62,619,409,397.56/280,035.81
  6. Step 6: Final answer
    x = 223,612.15

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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.