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Finding the Fourth Proportional to 287,974.96, 397,404.32 and 160,650.48

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Solution

The fourth proportional to 287,974.96, 397,404.32 and 160,650.48 is: 221,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,974.96 : 397,404.32 = 160,650.48 : x
  2. Step 2: Convert to fraction form
    287,974.96/397,404.32 = 160,650.48/x
  3. Step 3: Cross multiply
    287,974.96x = 397,404.32 × 160,650.48
  4. Step 4: Simplify right side
    287,974.96x = 63,843,194,762.07
  5. Step 5: Solve for x
    x = 63,843,194,762.07/287,974.96
  6. Step 6: Final answer
    x = 221,697.03

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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.