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Finding the Fourth Proportional to 343,520.20, 515,315.66 and 118,880.27

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Solution

The fourth proportional to 343,520.20, 515,315.66 and 118,880.27 is: 178,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,520.20 : 515,315.66 = 118,880.27 : x
  2. Step 2: Convert to fraction form
    343,520.20/515,315.66 = 118,880.27/x
  3. Step 3: Cross multiply
    343,520.20x = 515,315.66 × 118,880.27
  4. Step 4: Simplify right side
    343,520.20x = 61,260,863,557.48
  5. Step 5: Solve for x
    x = 61,260,863,557.48/343,520.20
  6. Step 6: Final answer
    x = 178,332.64

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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.