Home / 228,440.25-315,239.65-126,470.16

Finding the Fourth Proportional to 228,440.25, 315,239.65 and 126,470.16

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Solution

The fourth proportional to 228,440.25, 315,239.65 and 126,470.16 is: 174,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,440.25 : 315,239.65 = 126,470.16 : x
  2. Step 2: Convert to fraction form
    228,440.25/315,239.65 = 126,470.16/x
  3. Step 3: Cross multiply
    228,440.25x = 315,239.65 × 126,470.16
  4. Step 4: Simplify right side
    228,440.25x = 39,868,408,657.67
  5. Step 5: Solve for x
    x = 39,868,408,657.67/228,440.25
  6. Step 6: Final answer
    x = 174,524.45

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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.