Home / 340,538.20-510,116.10-192,621.40

Finding the Fourth Proportional to 340,538.20, 510,116.10 and 192,621.40

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Solution

The fourth proportional to 340,538.20, 510,116.10 and 192,621.40 is: 288,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,538.20 : 510,116.10 = 192,621.40 : x
  2. Step 2: Convert to fraction form
    340,538.20/510,116.10 = 192,621.40/x
  3. Step 3: Cross multiply
    340,538.20x = 510,116.10 × 192,621.40
  4. Step 4: Simplify right side
    340,538.20x = 98,259,277,344.54
  5. Step 5: Solve for x
    x = 98,259,277,344.54/340,538.20
  6. Step 6: Final answer
    x = 288,541.13

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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.