Home / 228,531.48-315,359.93-126,551.21

Finding the Fourth Proportional to 228,531.48, 315,359.93 and 126,551.21

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Solution

The fourth proportional to 228,531.48, 315,359.93 and 126,551.21 is: 174,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,531.48 : 315,359.93 = 126,551.21 : x
  2. Step 2: Convert to fraction form
    228,531.48/315,359.93 = 126,551.21/x
  3. Step 3: Cross multiply
    228,531.48x = 315,359.93 × 126,551.21
  4. Step 4: Simplify right side
    228,531.48x = 39,909,181,240.49
  5. Step 5: Solve for x
    x = 39,909,181,240.49/228,531.48
  6. Step 6: Final answer
    x = 174,633.19

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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.