Home / 353,269.55-487,515.56-192,128.15

Finding the Fourth Proportional to 353,269.55, 487,515.56 and 192,128.15

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Solution

The fourth proportional to 353,269.55, 487,515.56 and 192,128.15 is: 265,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,269.55 : 487,515.56 = 192,128.15 : x
  2. Step 2: Convert to fraction form
    353,269.55/487,515.56 = 192,128.15/x
  3. Step 3: Cross multiply
    353,269.55x = 487,515.56 × 192,128.15
  4. Step 4: Simplify right side
    353,269.55x = 93,665,461,678.37
  5. Step 5: Solve for x
    x = 93,665,461,678.37/353,269.55
  6. Step 6: Final answer
    x = 265,138.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.