Home / 312,219.12-468,328.70-75,561.84

Finding the Fourth Proportional to 312,219.12, 468,328.70 and 75,561.84

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Solution

The fourth proportional to 312,219.12, 468,328.70 and 75,561.84 is: 113,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,219.12 : 468,328.70 = 75,561.84 : x
  2. Step 2: Convert to fraction form
    312,219.12/468,328.70 = 75,561.84/x
  3. Step 3: Cross multiply
    312,219.12x = 468,328.70 × 75,561.84
  4. Step 4: Simplify right side
    312,219.12x = 35,387,778,296.81
  5. Step 5: Solve for x
    x = 35,387,778,296.81/312,219.12
  6. Step 6: Final answer
    x = 113,342.76

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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.