Home / 245,648.35-339,001.34-138,222.19

Finding the Fourth Proportional to 245,648.35, 339,001.34 and 138,222.19

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Solution

The fourth proportional to 245,648.35, 339,001.34 and 138,222.19 is: 190,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,648.35 : 339,001.34 = 138,222.19 : x
  2. Step 2: Convert to fraction form
    245,648.35/339,001.34 = 138,222.19/x
  3. Step 3: Cross multiply
    245,648.35x = 339,001.34 × 138,222.19
  4. Step 4: Simplify right side
    245,648.35x = 46,857,507,627.73
  5. Step 5: Solve for x
    x = 46,857,507,627.73/245,648.35
  6. Step 6: Final answer
    x = 190,750.35

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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.