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Finding the Fourth Proportional to 714.08, 1,070.91 and 226.98

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Solution

The fourth proportional to 714.08, 1,070.91 and 226.98 is: 340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.08 : 1,070.91 = 226.98 : x
  2. Step 2: Convert to fraction form
    714.08/1,070.91 = 226.98/x
  3. Step 3: Cross multiply
    714.08x = 1,070.91 × 226.98
  4. Step 4: Simplify right side
    714.08x = 243,075.15
  5. Step 5: Solve for x
    x = 243,075.15/714.08
  6. Step 6: Final answer
    x = 340.40

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Why These Related Problems?

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