Home / 505,355.40-758,026.56-145,535.04

Finding the Fourth Proportional to 505,355.40, 758,026.56 and 145,535.04

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Solution

The fourth proportional to 505,355.40, 758,026.56 and 145,535.04 is: 218,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,355.40 : 758,026.56 = 145,535.04 : x
  2. Step 2: Convert to fraction form
    505,355.40/758,026.56 = 145,535.04/x
  3. Step 3: Cross multiply
    505,355.40x = 758,026.56 × 145,535.04
  4. Step 4: Simplify right side
    505,355.40x = 110,319,425,730.66
  5. Step 5: Solve for x
    x = 110,319,425,730.66/505,355.40
  6. Step 6: Final answer
    x = 218,300.68

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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.