Home / 286,247.06-429,304.98-128,520.62

Finding the Fourth Proportional to 286,247.06, 429,304.98 and 128,520.62

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Solution

The fourth proportional to 286,247.06, 429,304.98 and 128,520.62 is: 192,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,247.06 : 429,304.98 = 128,520.62 : x
  2. Step 2: Convert to fraction form
    286,247.06/429,304.98 = 128,520.62/x
  3. Step 3: Cross multiply
    286,247.06x = 429,304.98 × 128,520.62
  4. Step 4: Simplify right side
    286,247.06x = 55,174,542,198.69
  5. Step 5: Solve for x
    x = 55,174,542,198.69/286,247.06
  6. Step 6: Final answer
    x = 192,751.47

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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.