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Finding the Fourth Proportional to 285,212.40, 393,602.40 and 164,344.32

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Solution

The fourth proportional to 285,212.40, 393,602.40 and 164,344.32 is: 226,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,212.40 : 393,602.40 = 164,344.32 : x
  2. Step 2: Convert to fraction form
    285,212.40/393,602.40 = 164,344.32/x
  3. Step 3: Cross multiply
    285,212.40x = 393,602.40 × 164,344.32
  4. Step 4: Simplify right side
    285,212.40x = 64,686,318,778.37
  5. Step 5: Solve for x
    x = 64,686,318,778.37/285,212.40
  6. Step 6: Final answer
    x = 226,800.51

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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.