Home / 281,831.40-389,077.02-191,668.68

Finding the Fourth Proportional to 281,831.40, 389,077.02 and 191,668.68

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Solution

The fourth proportional to 281,831.40, 389,077.02 and 191,668.68 is: 264,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,831.40 : 389,077.02 = 191,668.68 : x
  2. Step 2: Convert to fraction form
    281,831.40/389,077.02 = 191,668.68/x
  3. Step 3: Cross multiply
    281,831.40x = 389,077.02 × 191,668.68
  4. Step 4: Simplify right side
    281,831.40x = 74,573,878,841.73
  5. Step 5: Solve for x
    x = 74,573,878,841.73/281,831.40
  6. Step 6: Final answer
    x = 264,604.58

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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.