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Finding the Fourth Proportional to 282,483.40, 389,829.90 and 153,424.39

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Solution

The fourth proportional to 282,483.40, 389,829.90 and 153,424.39 is: 211,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,483.40 : 389,829.90 = 153,424.39 : x
  2. Step 2: Convert to fraction form
    282,483.40/389,829.90 = 153,424.39/x
  3. Step 3: Cross multiply
    282,483.40x = 389,829.90 × 153,424.39
  4. Step 4: Simplify right side
    282,483.40x = 59,809,414,611.26
  5. Step 5: Solve for x
    x = 59,809,414,611.26/282,483.40
  6. Step 6: Final answer
    x = 211,727.18

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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.