Home / 209,490.45-314,236.33-51,718.92

Finding the Fourth Proportional to 209,490.45, 314,236.33 and 51,718.92

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Solution

The fourth proportional to 209,490.45, 314,236.33 and 51,718.92 is: 77,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,490.45 : 314,236.33 = 51,718.92 : x
  2. Step 2: Convert to fraction form
    209,490.45/314,236.33 = 51,718.92/x
  3. Step 3: Cross multiply
    209,490.45x = 314,236.33 × 51,718.92
  4. Step 4: Simplify right side
    209,490.45x = 16,251,964,139.36
  5. Step 5: Solve for x
    x = 16,251,964,139.36/209,490.45
  6. Step 6: Final answer
    x = 77,578.54

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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.