Home / 330,746.18-495,828-131,206.70

Finding the Fourth Proportional to 330,746.18, 495,828 and 131,206.70

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Solution

The fourth proportional to 330,746.18, 495,828 and 131,206.70 is: 196,694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,746.18 : 495,828 = 131,206.70 : x
  2. Step 2: Convert to fraction form
    330,746.18/495,828 = 131,206.70/x
  3. Step 3: Cross multiply
    330,746.18x = 495,828 × 131,206.70
  4. Step 4: Simplify right side
    330,746.18x = 65,055,955,647.60
  5. Step 5: Solve for x
    x = 65,055,955,647.60/330,746.18
  6. Step 6: Final answer
    x = 196,694.50

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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.