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Finding the Fourth Proportional to 219,223.86, 302,523.11 and 122,425.04

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Solution

The fourth proportional to 219,223.86, 302,523.11 and 122,425.04 is: 168,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,223.86 : 302,523.11 = 122,425.04 : x
  2. Step 2: Convert to fraction form
    219,223.86/302,523.11 = 122,425.04/x
  3. Step 3: Cross multiply
    219,223.86x = 302,523.11 × 122,425.04
  4. Step 4: Simplify right side
    219,223.86x = 37,036,401,717.93
  5. Step 5: Solve for x
    x = 37,036,401,717.93/219,223.86
  6. Step 6: Final answer
    x = 168,943.30

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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.