Home / 330,937.40-496,435.66-128,528.67

Finding the Fourth Proportional to 330,937.40, 496,435.66 and 128,528.67

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Solution

The fourth proportional to 330,937.40, 496,435.66 and 128,528.67 is: 192,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,937.40 : 496,435.66 = 128,528.67 : x
  2. Step 2: Convert to fraction form
    330,937.40/496,435.66 = 128,528.67/x
  3. Step 3: Cross multiply
    330,937.40x = 496,435.66 × 128,528.67
  4. Step 4: Simplify right side
    330,937.40x = 63,806,216,660.68
  5. Step 5: Solve for x
    x = 63,806,216,660.68/330,937.40
  6. Step 6: Final answer
    x = 192,804.49

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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.