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Finding the Fourth Proportional to 330,756.45, 495,510.34 and 195,416.68

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Solution

The fourth proportional to 330,756.45, 495,510.34 and 195,416.68 is: 292,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,756.45 : 495,510.34 = 195,416.68 : x
  2. Step 2: Convert to fraction form
    330,756.45/495,510.34 = 195,416.68/x
  3. Step 3: Cross multiply
    330,756.45x = 495,510.34 × 195,416.68
  4. Step 4: Simplify right side
    330,756.45x = 96,830,985,548.47
  5. Step 5: Solve for x
    x = 96,830,985,548.47/330,756.45
  6. Step 6: Final answer
    x = 292,756.15

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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.