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Finding the Fourth Proportional to 315,367.83, 435,264.03 and 188,051.63

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Solution

The fourth proportional to 315,367.83, 435,264.03 and 188,051.63 is: 259,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,367.83 : 435,264.03 = 188,051.63 : x
  2. Step 2: Convert to fraction form
    315,367.83/435,264.03 = 188,051.63/x
  3. Step 3: Cross multiply
    315,367.83x = 435,264.03 × 188,051.63
  4. Step 4: Simplify right side
    315,367.83x = 81,852,108,145.55
  5. Step 5: Solve for x
    x = 81,852,108,145.55/315,367.83
  6. Step 6: Final answer
    x = 259,544.89

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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.