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Finding the Fourth Proportional to 342,340.20, 513,510.30 and 223,367.40

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Solution

The fourth proportional to 342,340.20, 513,510.30 and 223,367.40 is: 335,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,340.20 : 513,510.30 = 223,367.40 : x
  2. Step 2: Convert to fraction form
    342,340.20/513,510.30 = 223,367.40/x
  3. Step 3: Cross multiply
    342,340.20x = 513,510.30 × 223,367.40
  4. Step 4: Simplify right side
    342,340.20x = 114,701,460,584.22
  5. Step 5: Solve for x
    x = 114,701,460,584.22/342,340.20
  6. Step 6: Final answer
    x = 335,051.10

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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.