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Finding the Fourth Proportional to 281,630.93, 387,831.65 and 263,620.98

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Solution

The fourth proportional to 281,630.93, 387,831.65 and 263,620.98 is: 363,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,630.93 : 387,831.65 = 263,620.98 : x
  2. Step 2: Convert to fraction form
    281,630.93/387,831.65 = 263,620.98/x
  3. Step 3: Cross multiply
    281,630.93x = 387,831.65 × 263,620.98
  4. Step 4: Simplify right side
    281,630.93x = 102,240,558,329.91
  5. Step 5: Solve for x
    x = 102,240,558,329.91/281,630.93
  6. Step 6: Final answer
    x = 363,030.30

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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.