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Finding the Fourth Proportional to 245,195.58, 338,360.48 and 137,770.14

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Solution

The fourth proportional to 245,195.58, 338,360.48 and 137,770.14 is: 190,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,195.58 : 338,360.48 = 137,770.14 : x
  2. Step 2: Convert to fraction form
    245,195.58/338,360.48 = 137,770.14/x
  3. Step 3: Cross multiply
    245,195.58x = 338,360.48 × 137,770.14
  4. Step 4: Simplify right side
    245,195.58x = 46,615,970,700.07
  5. Step 5: Solve for x
    x = 46,615,970,700.07/245,195.58
  6. Step 6: Final answer
    x = 190,117.50

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1.5x scale

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.