Home / 660,123.24-990,237.18-186,811.56

Finding the Fourth Proportional to 660,123.24, 990,237.18 and 186,811.56

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Solution

The fourth proportional to 660,123.24, 990,237.18 and 186,811.56 is: 280,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,123.24 : 990,237.18 = 186,811.56 : x
  2. Step 2: Convert to fraction form
    660,123.24/990,237.18 = 186,811.56/x
  3. Step 3: Cross multiply
    660,123.24x = 990,237.18 × 186,811.56
  4. Step 4: Simplify right side
    660,123.24x = 184,987,752,365.80
  5. Step 5: Solve for x
    x = 184,987,752,365.80/660,123.24
  6. Step 6: Final answer
    x = 280,232.15

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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.