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Finding the Fourth Proportional to 330,695.19, 495,649.13 and 230,311.89

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Solution

The fourth proportional to 330,695.19, 495,649.13 and 230,311.89 is: 345,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,695.19 : 495,649.13 = 230,311.89 : x
  2. Step 2: Convert to fraction form
    330,695.19/495,649.13 = 230,311.89/x
  3. Step 3: Cross multiply
    330,695.19x = 495,649.13 × 230,311.89
  4. Step 4: Simplify right side
    330,695.19x = 114,153,886,755.60
  5. Step 5: Solve for x
    x = 114,153,886,755.60/330,695.19
  6. Step 6: Final answer
    x = 345,193.67

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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.