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Finding the Fourth Proportional to 430.95, 594.63 and 291.18

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Solution

The fourth proportional to 430.95, 594.63 and 291.18 is: 401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.95 : 594.63 = 291.18 : x
  2. Step 2: Convert to fraction form
    430.95/594.63 = 291.18/x
  3. Step 3: Cross multiply
    430.95x = 594.63 × 291.18
  4. Step 4: Simplify right side
    430.95x = 173,144.36
  5. Step 5: Solve for x
    x = 173,144.36/430.95
  6. Step 6: Final answer
    x = 401.77

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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.