Home / 353,072.57-529,442.37-128,274.48

Finding the Fourth Proportional to 353,072.57, 529,442.37 and 128,274.48

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Solution

The fourth proportional to 353,072.57, 529,442.37 and 128,274.48 is: 192,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,072.57 : 529,442.37 = 128,274.48 : x
  2. Step 2: Convert to fraction form
    353,072.57/529,442.37 = 128,274.48/x
  3. Step 3: Cross multiply
    353,072.57x = 529,442.37 × 128,274.48
  4. Step 4: Simplify right side
    353,072.57x = 67,913,944,701.72
  5. Step 5: Solve for x
    x = 67,913,944,701.72/353,072.57
  6. Step 6: Final answer
    x = 192,351.24

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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.