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Finding the Fourth Proportional to 281,371.04, 388,329 and 160,484.62

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Solution

The fourth proportional to 281,371.04, 388,329 and 160,484.62 is: 221,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,371.04 : 388,329 = 160,484.62 : x
  2. Step 2: Convert to fraction form
    281,371.04/388,329 = 160,484.62/x
  3. Step 3: Cross multiply
    281,371.04x = 388,329 × 160,484.62
  4. Step 4: Simplify right side
    281,371.04x = 62,320,831,999.98
  5. Step 5: Solve for x
    x = 62,320,831,999.98/281,371.04
  6. Step 6: Final answer
    x = 221,489.86

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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.