Home / 245,727.96-339,068.02-138,291.60

Finding the Fourth Proportional to 245,727.96, 339,068.02 and 138,291.60

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Solution

The fourth proportional to 245,727.96, 339,068.02 and 138,291.60 is: 190,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,727.96 : 339,068.02 = 138,291.60 : x
  2. Step 2: Convert to fraction form
    245,727.96/339,068.02 = 138,291.60/x
  3. Step 3: Cross multiply
    245,727.96x = 339,068.02 × 138,291.60
  4. Step 4: Simplify right side
    245,727.96x = 46,890,258,994.63
  5. Step 5: Solve for x
    x = 46,890,258,994.63/245,727.96
  6. Step 6: Final answer
    x = 190,821.83

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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.