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Finding the Fourth Proportional to 589.39, 813.58 and 368.39

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Solution

The fourth proportional to 589.39, 813.58 and 368.39 is: 508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.39 : 813.58 = 368.39 : x
  2. Step 2: Convert to fraction form
    589.39/813.58 = 368.39/x
  3. Step 3: Cross multiply
    589.39x = 813.58 × 368.39
  4. Step 4: Simplify right side
    589.39x = 299,715.85
  5. Step 5: Solve for x
    x = 299,715.85/589.39
  6. Step 6: Final answer
    x = 508.52

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1.5x scale

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.