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Finding the Fourth Proportional to 281,760.36, 388,869.16 and 174,364.98

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Solution

The fourth proportional to 281,760.36, 388,869.16 and 174,364.98 is: 240,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,760.36 : 388,869.16 = 174,364.98 : x
  2. Step 2: Convert to fraction form
    281,760.36/388,869.16 = 174,364.98/x
  3. Step 3: Cross multiply
    281,760.36x = 388,869.16 × 174,364.98
  4. Step 4: Simplify right side
    281,760.36x = 67,805,163,306.02
  5. Step 5: Solve for x
    x = 67,805,163,306.02/281,760.36
  6. Step 6: Final answer
    x = 240,648.34

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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.