Home / 456,516.48-629,992.32-255,312

Finding the Fourth Proportional to 456,516.48, 629,992.32 and 255,312

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Solution

The fourth proportional to 456,516.48, 629,992.32 and 255,312 is: 352,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,516.48 : 629,992.32 = 255,312 : x
  2. Step 2: Convert to fraction form
    456,516.48/629,992.32 = 255,312/x
  3. Step 3: Cross multiply
    456,516.48x = 629,992.32 × 255,312
  4. Step 4: Simplify right side
    456,516.48x = 160,844,599,203.84
  5. Step 5: Solve for x
    x = 160,844,599,203.84/456,516.48
  6. Step 6: Final answer
    x = 352,330.32

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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.