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Finding the Fourth Proportional to 485.05, 669 and 373.00

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Solution

The fourth proportional to 485.05, 669 and 373.00 is: 514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.05 : 669 = 373.00 : x
  2. Step 2: Convert to fraction form
    485.05/669 = 373.00/x
  3. Step 3: Cross multiply
    485.05x = 669 × 373.00
  4. Step 4: Simplify right side
    485.05x = 249,533.66
  5. Step 5: Solve for x
    x = 249,533.66/485.05
  6. Step 6: Final answer
    x = 514.45

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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.