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Finding the Fourth Proportional to 285,393.31, 393,849.12 and 162,883.22

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Solution

The fourth proportional to 285,393.31, 393,849.12 and 162,883.22 is: 224,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,393.31 : 393,849.12 = 162,883.22 : x
  2. Step 2: Convert to fraction form
    285,393.31/393,849.12 = 162,883.22/x
  3. Step 3: Cross multiply
    285,393.31x = 393,849.12 × 162,883.22
  4. Step 4: Simplify right side
    285,393.31x = 64,151,412,045.35
  5. Step 5: Solve for x
    x = 64,151,412,045.35/285,393.31
  6. Step 6: Final answer
    x = 224,782.47

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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.