Home / 307,204.18-460,805.91-85,588.18

Finding the Fourth Proportional to 307,204.18, 460,805.91 and 85,588.18

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Solution

The fourth proportional to 307,204.18, 460,805.91 and 85,588.18 is: 128,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,204.18 : 460,805.91 = 85,588.18 : x
  2. Step 2: Convert to fraction form
    307,204.18/460,805.91 = 85,588.18/x
  3. Step 3: Cross multiply
    307,204.18x = 460,805.91 × 85,588.18
  4. Step 4: Simplify right side
    307,204.18x = 39,439,539,170.14
  5. Step 5: Solve for x
    x = 39,439,539,170.14/307,204.18
  6. Step 6: Final answer
    x = 128,382.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.