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Finding the Fourth Proportional to 602.60, 903.66 and 290.19

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Solution

The fourth proportional to 602.60, 903.66 and 290.19 is: 435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.60 : 903.66 = 290.19 : x
  2. Step 2: Convert to fraction form
    602.60/903.66 = 290.19/x
  3. Step 3: Cross multiply
    602.60x = 903.66 × 290.19
  4. Step 4: Simplify right side
    602.60x = 262,231.95
  5. Step 5: Solve for x
    x = 262,231.95/602.60
  6. Step 6: Final answer
    x = 435.17

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1.5x scale

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.