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Finding the Fourth Proportional to 219,122.40, 328,491.60 and 148,773.60

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Solution

The fourth proportional to 219,122.40, 328,491.60 and 148,773.60 is: 223,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,122.40 : 328,491.60 = 148,773.60 : x
  2. Step 2: Convert to fraction form
    219,122.40/328,491.60 = 148,773.60/x
  3. Step 3: Cross multiply
    219,122.40x = 328,491.60 × 148,773.60
  4. Step 4: Simplify right side
    219,122.40x = 48,870,877,901.76
  5. Step 5: Solve for x
    x = 48,870,877,901.76/219,122.40
  6. Step 6: Final answer
    x = 223,030.04

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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.