Home / 282,561.28-389,940.08-155,241.68

Finding the Fourth Proportional to 282,561.28, 389,940.08 and 155,241.68

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Solution

The fourth proportional to 282,561.28, 389,940.08 and 155,241.68 is: 214,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,561.28 : 389,940.08 = 155,241.68 : x
  2. Step 2: Convert to fraction form
    282,561.28/389,940.08 = 155,241.68/x
  3. Step 3: Cross multiply
    282,561.28x = 389,940.08 × 155,241.68
  4. Step 4: Simplify right side
    282,561.28x = 60,534,953,118.53
  5. Step 5: Solve for x
    x = 60,534,953,118.53/282,561.28
  6. Step 6: Final answer
    x = 214,236.55

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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.