Home / 228,511.72-315,345.97-126,537.18

Finding the Fourth Proportional to 228,511.72, 315,345.97 and 126,537.18

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Solution

The fourth proportional to 228,511.72, 315,345.97 and 126,537.18 is: 174,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,511.72 : 315,345.97 = 126,537.18 : x
  2. Step 2: Convert to fraction form
    228,511.72/315,345.97 = 126,537.18/x
  3. Step 3: Cross multiply
    228,511.72x = 315,345.97 × 126,537.18
  4. Step 4: Simplify right side
    228,511.72x = 39,902,989,768.16
  5. Step 5: Solve for x
    x = 39,902,989,768.16/228,511.72
  6. Step 6: Final answer
    x = 174,621.20

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1.5x scale

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.