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Finding the Fourth Proportional to 285,468.84, 393,988.93 and 164,586.47

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Solution

The fourth proportional to 285,468.84, 393,988.93 and 164,586.47 is: 227,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,468.84 : 393,988.93 = 164,586.47 : x
  2. Step 2: Convert to fraction form
    285,468.84/393,988.93 = 164,586.47/x
  3. Step 3: Cross multiply
    285,468.84x = 393,988.93 × 164,586.47
  4. Step 4: Simplify right side
    285,468.84x = 64,845,244,826.37
  5. Step 5: Solve for x
    x = 64,845,244,826.37/285,468.84
  6. Step 6: Final answer
    x = 227,153.50

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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.