Home / 280,033.81-386,333.75-162,083.15

Finding the Fourth Proportional to 280,033.81, 386,333.75 and 162,083.15

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Solution

The fourth proportional to 280,033.81, 386,333.75 and 162,083.15 is: 223,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,033.81 : 386,333.75 = 162,083.15 : x
  2. Step 2: Convert to fraction form
    280,033.81/386,333.75 = 162,083.15/x
  3. Step 3: Cross multiply
    280,033.81x = 386,333.75 × 162,083.15
  4. Step 4: Simplify right side
    280,033.81x = 62,618,191,151.31
  5. Step 5: Solve for x
    x = 62,618,191,151.31/280,033.81
  6. Step 6: Final answer
    x = 223,609.40

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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.