Home / 263,774.20-395,831.40-145,530.40

Finding the Fourth Proportional to 263,774.20, 395,831.40 and 145,530.40

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Solution

The fourth proportional to 263,774.20, 395,831.40 and 145,530.40 is: 218,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,774.20 : 395,831.40 = 145,530.40 : x
  2. Step 2: Convert to fraction form
    263,774.20/395,831.40 = 145,530.40/x
  3. Step 3: Cross multiply
    263,774.20x = 395,831.40 × 145,530.40
  4. Step 4: Simplify right side
    263,774.20x = 57,605,501,974.56
  5. Step 5: Solve for x
    x = 57,605,501,974.56/263,774.20
  6. Step 6: Final answer
    x = 218,389.45

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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.