Home / 228,789.83-315,623.17-143,953.67

Finding the Fourth Proportional to 228,789.83, 315,623.17 and 143,953.67

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Solution

The fourth proportional to 228,789.83, 315,623.17 and 143,953.67 is: 198,588.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,789.83 : 315,623.17 = 143,953.67 : x
  2. Step 2: Convert to fraction form
    228,789.83/315,623.17 = 143,953.67/x
  3. Step 3: Cross multiply
    228,789.83x = 315,623.17 × 143,953.67
  4. Step 4: Simplify right side
    228,789.83x = 45,435,113,658.53
  5. Step 5: Solve for x
    x = 45,435,113,658.53/228,789.83
  6. Step 6: Final answer
    x = 198,588.87

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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.