Home / 245,435.22-338,697.27-138,005.51

Finding the Fourth Proportional to 245,435.22, 338,697.27 and 138,005.51

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Solution

The fourth proportional to 245,435.22, 338,697.27 and 138,005.51 is: 190,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,435.22 : 338,697.27 = 138,005.51 : x
  2. Step 2: Convert to fraction form
    245,435.22/338,697.27 = 138,005.51/x
  3. Step 3: Cross multiply
    245,435.22x = 338,697.27 × 138,005.51
  4. Step 4: Simplify right side
    245,435.22x = 46,742,089,605.49
  5. Step 5: Solve for x
    x = 46,742,089,605.49/245,435.22
  6. Step 6: Final answer
    x = 190,445.73

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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.