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Finding the Fourth Proportional to 285,007.58, 393,275.88 and 164,187.98

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Solution

The fourth proportional to 285,007.58, 393,275.88 and 164,187.98 is: 226,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,007.58 : 393,275.88 = 164,187.98 : x
  2. Step 2: Convert to fraction form
    285,007.58/393,275.88 = 164,187.98/x
  3. Step 3: Cross multiply
    285,007.58x = 393,275.88 × 164,187.98
  4. Step 4: Simplify right side
    285,007.58x = 64,571,169,532.60
  5. Step 5: Solve for x
    x = 64,571,169,532.60/285,007.58
  6. Step 6: Final answer
    x = 226,559.49

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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.