Home / 262,923.20-393,931.20-122,393.60

Finding the Fourth Proportional to 262,923.20, 393,931.20 and 122,393.60

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Solution

The fourth proportional to 262,923.20, 393,931.20 and 122,393.60 is: 183,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,923.20 : 393,931.20 = 122,393.60 : x
  2. Step 2: Convert to fraction form
    262,923.20/393,931.20 = 122,393.60/x
  3. Step 3: Cross multiply
    262,923.20x = 393,931.20 × 122,393.60
  4. Step 4: Simplify right side
    262,923.20x = 48,214,657,720.32
  5. Step 5: Solve for x
    x = 48,214,657,720.32/262,923.20
  6. Step 6: Final answer
    x = 183,379.24

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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.