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Finding the Fourth Proportional to 570.04, 786.41 and 373.21

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Solution

The fourth proportional to 570.04, 786.41 and 373.21 is: 514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.04 : 786.41 = 373.21 : x
  2. Step 2: Convert to fraction form
    570.04/786.41 = 373.21/x
  3. Step 3: Cross multiply
    570.04x = 786.41 × 373.21
  4. Step 4: Simplify right side
    570.04x = 293,493.64
  5. Step 5: Solve for x
    x = 293,493.64/570.04
  6. Step 6: Final answer
    x = 514.87

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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.