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Finding the Fourth Proportional to 285,219.99, 393,645.11 and 164,337.93

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Solution

The fourth proportional to 285,219.99, 393,645.11 and 164,337.93 is: 226,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,219.99 : 393,645.11 = 164,337.93 : x
  2. Step 2: Convert to fraction form
    285,219.99/393,645.11 = 164,337.93/x
  3. Step 3: Cross multiply
    285,219.99x = 393,645.11 × 164,337.93
  4. Step 4: Simplify right side
    285,219.99x = 64,690,821,710.33
  5. Step 5: Solve for x
    x = 64,690,821,710.33/285,219.99
  6. Step 6: Final answer
    x = 226,810.27

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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.