Home / 405,027.20-607,540.80-168,831.20

Finding the Fourth Proportional to 405,027.20, 607,540.80 and 168,831.20

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Solution

The fourth proportional to 405,027.20, 607,540.80 and 168,831.20 is: 253,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,027.20 : 607,540.80 = 168,831.20 : x
  2. Step 2: Convert to fraction form
    405,027.20/607,540.80 = 168,831.20/x
  3. Step 3: Cross multiply
    405,027.20x = 607,540.80 × 168,831.20
  4. Step 4: Simplify right side
    405,027.20x = 102,571,842,312.96
  5. Step 5: Solve for x
    x = 102,571,842,312.96/405,027.20
  6. Step 6: Final answer
    x = 253,246.80

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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.