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Finding the Fourth Proportional to 603.47, 906.21 and 373.70

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Solution

The fourth proportional to 603.47, 906.21 and 373.70 is: 561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.47 : 906.21 = 373.70 : x
  2. Step 2: Convert to fraction form
    603.47/906.21 = 373.70/x
  3. Step 3: Cross multiply
    603.47x = 906.21 × 373.70
  4. Step 4: Simplify right side
    603.47x = 338,646.15
  5. Step 5: Solve for x
    x = 338,646.15/603.47
  6. Step 6: Final answer
    x = 561.17

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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.