Home / 228,905.84-315,884.40-126,931.70

Finding the Fourth Proportional to 228,905.84, 315,884.40 and 126,931.70

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Solution

The fourth proportional to 228,905.84, 315,884.40 and 126,931.70 is: 175,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,905.84 : 315,884.40 = 126,931.70 : x
  2. Step 2: Convert to fraction form
    228,905.84/315,884.40 = 126,931.70/x
  3. Step 3: Cross multiply
    228,905.84x = 315,884.40 × 126,931.70
  4. Step 4: Simplify right side
    228,905.84x = 40,095,743,895.48
  5. Step 5: Solve for x
    x = 40,095,743,895.48/228,905.84
  6. Step 6: Final answer
    x = 175,162.61

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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.