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Finding the Fourth Proportional to 285,157.36, 393,482.56 and 164,337.76

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Solution

The fourth proportional to 285,157.36, 393,482.56 and 164,337.76 is: 226,766.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,157.36 : 393,482.56 = 164,337.76 : x
  2. Step 2: Convert to fraction form
    285,157.36/393,482.56 = 164,337.76/x
  3. Step 3: Cross multiply
    285,157.36x = 393,482.56 × 164,337.76
  4. Step 4: Simplify right side
    285,157.36x = 64,664,042,509.47
  5. Step 5: Solve for x
    x = 64,664,042,509.47/285,157.36
  6. Step 6: Final answer
    x = 226,766.17

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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.