Home / 315,066.32-434,545.78-201,899.60

Finding the Fourth Proportional to 315,066.32, 434,545.78 and 201,899.60

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Solution

The fourth proportional to 315,066.32, 434,545.78 and 201,899.60 is: 278,463.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,066.32 : 434,545.78 = 201,899.60 : x
  2. Step 2: Convert to fraction form
    315,066.32/434,545.78 = 201,899.60/x
  3. Step 3: Cross multiply
    315,066.32x = 434,545.78 × 201,899.60
  4. Step 4: Simplify right side
    315,066.32x = 87,734,619,163.69
  5. Step 5: Solve for x
    x = 87,734,619,163.69/315,066.32
  6. Step 6: Final answer
    x = 278,463.97

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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.