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Finding the Fourth Proportional to 281,542.53, 388,539.41 and 160,703.49

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Solution

The fourth proportional to 281,542.53, 388,539.41 and 160,703.49 is: 221,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,542.53 : 388,539.41 = 160,703.49 : x
  2. Step 2: Convert to fraction form
    281,542.53/388,539.41 = 160,703.49/x
  3. Step 3: Cross multiply
    281,542.53x = 388,539.41 × 160,703.49
  4. Step 4: Simplify right side
    281,542.53x = 62,439,638,386.02
  5. Step 5: Solve for x
    x = 62,439,638,386.02/281,542.53
  6. Step 6: Final answer
    x = 221,776.93

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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.