Home / 342,106.20-512,576.10-282,619.80

Finding the Fourth Proportional to 342,106.20, 512,576.10 and 282,619.80

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Solution

The fourth proportional to 342,106.20, 512,576.10 and 282,619.80 is: 423,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,106.20 : 512,576.10 = 282,619.80 : x
  2. Step 2: Convert to fraction form
    342,106.20/512,576.10 = 282,619.80/x
  3. Step 3: Cross multiply
    342,106.20x = 512,576.10 × 282,619.80
  4. Step 4: Simplify right side
    342,106.20x = 144,864,154,866.78
  5. Step 5: Solve for x
    x = 144,864,154,866.78/342,106.20
  6. Step 6: Final answer
    x = 423,447.91

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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.