Home / 228,006.99-314,606.34-143,085.78

Finding the Fourth Proportional to 228,006.99, 314,606.34 and 143,085.78

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Solution

The fourth proportional to 228,006.99, 314,606.34 and 143,085.78 is: 197,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,006.99 : 314,606.34 = 143,085.78 : x
  2. Step 2: Convert to fraction form
    228,006.99/314,606.34 = 143,085.78/x
  3. Step 3: Cross multiply
    228,006.99x = 314,606.34 × 143,085.78
  4. Step 4: Simplify right side
    228,006.99x = 45,015,693,551.85
  5. Step 5: Solve for x
    x = 45,015,693,551.85/228,006.99
  6. Step 6: Final answer
    x = 197,431.20

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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.