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Finding the Fourth Proportional to 285,415.02, 393,873.03 and 158,087.94

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Solution

The fourth proportional to 285,415.02, 393,873.03 and 158,087.94 is: 218,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,415.02 : 393,873.03 = 158,087.94 : x
  2. Step 2: Convert to fraction form
    285,415.02/393,873.03 = 158,087.94/x
  3. Step 3: Cross multiply
    285,415.02x = 393,873.03 × 158,087.94
  4. Step 4: Simplify right side
    285,415.02x = 62,266,575,934.26
  5. Step 5: Solve for x
    x = 62,266,575,934.26/285,415.02
  6. Step 6: Final answer
    x = 218,161.52

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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.