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Finding the Fourth Proportional to 845.55, 1,267.83 and 358.35

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Solution

The fourth proportional to 845.55, 1,267.83 and 358.35 is: 537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.55 : 1,267.83 = 358.35 : x
  2. Step 2: Convert to fraction form
    845.55/1,267.83 = 358.35/x
  3. Step 3: Cross multiply
    845.55x = 1,267.83 × 358.35
  4. Step 4: Simplify right side
    845.55x = 454,326.88
  5. Step 5: Solve for x
    x = 454,326.88/845.55
  6. Step 6: Final answer
    x = 537.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.