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Finding the Fourth Proportional to 219,885.90, 329,828.85 and 149,901.90

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Solution

The fourth proportional to 219,885.90, 329,828.85 and 149,901.90 is: 224,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,885.90 : 329,828.85 = 149,901.90 : x
  2. Step 2: Convert to fraction form
    219,885.90/329,828.85 = 149,901.90/x
  3. Step 3: Cross multiply
    219,885.90x = 329,828.85 × 149,901.90
  4. Step 4: Simplify right side
    219,885.90x = 49,441,971,289.82
  5. Step 5: Solve for x
    x = 49,441,971,289.82/219,885.90
  6. Step 6: Final answer
    x = 224,852.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.