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Finding the Fourth Proportional to 281,380.88, 388,342.67 and 160,494.45

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Solution

The fourth proportional to 281,380.88, 388,342.67 and 160,494.45 is: 221,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,380.88 : 388,342.67 = 160,494.45 : x
  2. Step 2: Convert to fraction form
    281,380.88/388,342.67 = 160,494.45/x
  3. Step 3: Cross multiply
    281,380.88x = 388,342.67 × 160,494.45
  4. Step 4: Simplify right side
    281,380.88x = 62,326,842,430.71
  5. Step 5: Solve for x
    x = 62,326,842,430.71/281,380.88
  6. Step 6: Final answer
    x = 221,503.48

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1.5x scale

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.