Home / 228,386.25-315,173.72-126,418.79

Finding the Fourth Proportional to 228,386.25, 315,173.72 and 126,418.79

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Solution

The fourth proportional to 228,386.25, 315,173.72 and 126,418.79 is: 174,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,386.25 : 315,173.72 = 126,418.79 : x
  2. Step 2: Convert to fraction form
    228,386.25/315,173.72 = 126,418.79/x
  3. Step 3: Cross multiply
    228,386.25x = 315,173.72 × 126,418.79
  4. Step 4: Simplify right side
    228,386.25x = 39,843,881,426.18
  5. Step 5: Solve for x
    x = 39,843,881,426.18/228,386.25
  6. Step 6: Final answer
    x = 174,458.32

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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.