Home / 351,579.16-485,095.26-208,314.46

Finding the Fourth Proportional to 351,579.16, 485,095.26 and 208,314.46

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Solution

The fourth proportional to 351,579.16, 485,095.26 and 208,314.46 is: 287,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,579.16 : 485,095.26 = 208,314.46 : x
  2. Step 2: Convert to fraction form
    351,579.16/485,095.26 = 208,314.46/x
  3. Step 3: Cross multiply
    351,579.16x = 485,095.26 × 208,314.46
  4. Step 4: Simplify right side
    351,579.16x = 101,052,357,135.46
  5. Step 5: Solve for x
    x = 101,052,357,135.46/351,579.16
  6. Step 6: Final answer
    x = 287,424.20

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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.