Home / 228,578.40-315,429.12-127,974.24

Finding the Fourth Proportional to 228,578.40, 315,429.12 and 127,974.24

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Solution

The fourth proportional to 228,578.40, 315,429.12 and 127,974.24 is: 176,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,578.40 : 315,429.12 = 127,974.24 : x
  2. Step 2: Convert to fraction form
    228,578.40/315,429.12 = 127,974.24/x
  3. Step 3: Cross multiply
    228,578.40x = 315,429.12 × 127,974.24
  4. Step 4: Simplify right side
    228,578.40x = 40,366,801,905.87
  5. Step 5: Solve for x
    x = 40,366,801,905.87/228,578.40
  6. Step 6: Final answer
    x = 176,599.37

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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.