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Finding the Fourth Proportional to 228,881.09, 315,888.46 and 126,929.23

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Solution

The fourth proportional to 228,881.09, 315,888.46 and 126,929.23 is: 175,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,881.09 : 315,888.46 = 126,929.23 : x
  2. Step 2: Convert to fraction form
    228,881.09/315,888.46 = 126,929.23/x
  3. Step 3: Cross multiply
    228,881.09x = 315,888.46 × 126,929.23
  4. Step 4: Simplify right side
    228,881.09x = 40,095,477,886.64
  5. Step 5: Solve for x
    x = 40,095,477,886.64/228,881.09
  6. Step 6: Final answer
    x = 175,180.38

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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.