Home / 283,147.18-390,735.26-160,661.86

Finding the Fourth Proportional to 283,147.18, 390,735.26 and 160,661.86

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Solution

The fourth proportional to 283,147.18, 390,735.26 and 160,661.86 is: 221,708.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,147.18 : 390,735.26 = 160,661.86 : x
  2. Step 2: Convert to fraction form
    283,147.18/390,735.26 = 160,661.86/x
  3. Step 3: Cross multiply
    283,147.18x = 390,735.26 × 160,661.86
  4. Step 4: Simplify right side
    283,147.18x = 62,776,252,835.87
  5. Step 5: Solve for x
    x = 62,776,252,835.87/283,147.18
  6. Step 6: Final answer
    x = 221,708.91

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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.