Home / 330,291.36-495,568.32-105,686.40

Finding the Fourth Proportional to 330,291.36, 495,568.32 and 105,686.40

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Solution

The fourth proportional to 330,291.36, 495,568.32 and 105,686.40 is: 158,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,291.36 : 495,568.32 = 105,686.40 : x
  2. Step 2: Convert to fraction form
    330,291.36/495,568.32 = 105,686.40/x
  3. Step 3: Cross multiply
    330,291.36x = 495,568.32 × 105,686.40
  4. Step 4: Simplify right side
    330,291.36x = 52,374,831,694.85
  5. Step 5: Solve for x
    x = 52,374,831,694.85/330,291.36
  6. Step 6: Final answer
    x = 158,571.61

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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.