Home / 258,258.78-356,394.60-143,537.67

Finding the Fourth Proportional to 258,258.78, 356,394.60 and 143,537.67

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Solution

The fourth proportional to 258,258.78, 356,394.60 and 143,537.67 is: 198,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,258.78 : 356,394.60 = 143,537.67 : x
  2. Step 2: Convert to fraction form
    258,258.78/356,394.60 = 143,537.67/x
  3. Step 3: Cross multiply
    258,258.78x = 356,394.60 × 143,537.67
  4. Step 4: Simplify right side
    258,258.78x = 51,156,050,484.58
  5. Step 5: Solve for x
    x = 51,156,050,484.58/258,258.78
  6. Step 6: Final answer
    x = 198,080.59

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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.