Home / 343,737.36-474,361.20-190,778.40

Finding the Fourth Proportional to 343,737.36, 474,361.20 and 190,778.40

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Solution

The fourth proportional to 343,737.36, 474,361.20 and 190,778.40 is: 263,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,737.36 : 474,361.20 = 190,778.40 : x
  2. Step 2: Convert to fraction form
    343,737.36/474,361.20 = 190,778.40/x
  3. Step 3: Cross multiply
    343,737.36x = 474,361.20 × 190,778.40
  4. Step 4: Simplify right side
    343,737.36x = 90,497,870,758.08
  5. Step 5: Solve for x
    x = 90,497,870,758.08/343,737.36
  6. Step 6: Final answer
    x = 263,276.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.