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Finding the Fourth Proportional to 354,466.60, 531,800.34 and 144,255.40

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Solution

The fourth proportional to 354,466.60, 531,800.34 and 144,255.40 is: 216,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,466.60 : 531,800.34 = 144,255.40 : x
  2. Step 2: Convert to fraction form
    354,466.60/531,800.34 = 144,255.40/x
  3. Step 3: Cross multiply
    354,466.60x = 531,800.34 × 144,255.40
  4. Step 4: Simplify right side
    354,466.60x = 76,715,070,766.84
  5. Step 5: Solve for x
    x = 76,715,070,766.84/354,466.60
  6. Step 6: Final answer
    x = 216,423.98

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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.