Home / 352,120.08-485,849.70-208,927.50

Finding the Fourth Proportional to 352,120.08, 485,849.70 and 208,927.50

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Solution

The fourth proportional to 352,120.08, 485,849.70 and 208,927.50 is: 288,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,120.08 : 485,849.70 = 208,927.50 : x
  2. Step 2: Convert to fraction form
    352,120.08/485,849.70 = 208,927.50/x
  3. Step 3: Cross multiply
    352,120.08x = 485,849.70 × 208,927.50
  4. Step 4: Simplify right side
    352,120.08x = 101,507,363,196.75
  5. Step 5: Solve for x
    x = 101,507,363,196.75/352,120.08
  6. Step 6: Final answer
    x = 288,274.85

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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.