Home / 355,831.12-534,357.40-315,940.24

Finding the Fourth Proportional to 355,831.12, 534,357.40 and 315,940.24

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Solution

The fourth proportional to 355,831.12, 534,357.40 and 315,940.24 is: 474,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,831.12 : 534,357.40 = 315,940.24 : x
  2. Step 2: Convert to fraction form
    355,831.12/534,357.40 = 315,940.24/x
  3. Step 3: Cross multiply
    355,831.12x = 534,357.40 × 315,940.24
  4. Step 4: Simplify right side
    355,831.12x = 168,825,005,201.78
  5. Step 5: Solve for x
    x = 168,825,005,201.78/355,831.12
  6. Step 6: Final answer
    x = 474,452.61

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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.