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Finding the Fourth Proportional to 253,358.37, 379,280.34 and 153,215.64

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Solution

The fourth proportional to 253,358.37, 379,280.34 and 153,215.64 is: 229,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,358.37 : 379,280.34 = 153,215.64 : x
  2. Step 2: Convert to fraction form
    253,358.37/379,280.34 = 153,215.64/x
  3. Step 3: Cross multiply
    253,358.37x = 379,280.34 × 153,215.64
  4. Step 4: Simplify right side
    253,358.37x = 58,111,680,032.52
  5. Step 5: Solve for x
    x = 58,111,680,032.52/253,358.37
  6. Step 6: Final answer
    x = 229,365.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.