Home / 456,333.16-629,723.94-255,128.68

Finding the Fourth Proportional to 456,333.16, 629,723.94 and 255,128.68

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Solution

The fourth proportional to 456,333.16, 629,723.94 and 255,128.68 is: 352,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,333.16 : 629,723.94 = 255,128.68 : x
  2. Step 2: Convert to fraction form
    456,333.16/629,723.94 = 255,128.68/x
  3. Step 3: Cross multiply
    456,333.16x = 629,723.94 × 255,128.68
  4. Step 4: Simplify right side
    456,333.16x = 160,660,637,576.60
  5. Step 5: Solve for x
    x = 160,660,637,576.60/456,333.16
  6. Step 6: Final answer
    x = 352,068.73

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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.