Home / 245,722.67-339,108.20-138,299.66

Finding the Fourth Proportional to 245,722.67, 339,108.20 and 138,299.66

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Solution

The fourth proportional to 245,722.67, 339,108.20 and 138,299.66 is: 190,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,722.67 : 339,108.20 = 138,299.66 : x
  2. Step 2: Convert to fraction form
    245,722.67/339,108.20 = 138,299.66/x
  3. Step 3: Cross multiply
    245,722.67x = 339,108.20 × 138,299.66
  4. Step 4: Simplify right side
    245,722.67x = 46,898,547,223.94
  5. Step 5: Solve for x
    x = 46,898,547,223.94/245,722.67
  6. Step 6: Final answer
    x = 190,859.67

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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.