Home / 210,236.79-315,355.19-52,465.25

Finding the Fourth Proportional to 210,236.79, 315,355.19 and 52,465.25

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Solution

The fourth proportional to 210,236.79, 315,355.19 and 52,465.25 is: 78,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,236.79 : 315,355.19 = 52,465.25 : x
  2. Step 2: Convert to fraction form
    210,236.79/315,355.19 = 52,465.25/x
  3. Step 3: Cross multiply
    210,236.79x = 315,355.19 × 52,465.25
  4. Step 4: Simplify right side
    210,236.79x = 16,545,187,043.05
  5. Step 5: Solve for x
    x = 16,545,187,043.05/210,236.79
  6. Step 6: Final answer
    x = 78,697.87

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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.