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Finding the Fourth Proportional to 258,203.92, 356,354.76 and 145,026.67

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Solution

The fourth proportional to 258,203.92, 356,354.76 and 145,026.67 is: 200,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,203.92 : 356,354.76 = 145,026.67 : x
  2. Step 2: Convert to fraction form
    258,203.92/356,354.76 = 145,026.67/x
  3. Step 3: Cross multiply
    258,203.92x = 356,354.76 × 145,026.67
  4. Step 4: Simplify right side
    258,203.92x = 51,680,944,181.45
  5. Step 5: Solve for x
    x = 51,680,944,181.45/258,203.92
  6. Step 6: Final answer
    x = 200,155.54

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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.