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Finding the Fourth Proportional to 434.19, 599.19 and 259.64

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Solution

The fourth proportional to 434.19, 599.19 and 259.64 is: 358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.19 : 599.19 = 259.64 : x
  2. Step 2: Convert to fraction form
    434.19/599.19 = 259.64/x
  3. Step 3: Cross multiply
    434.19x = 599.19 × 259.64
  4. Step 4: Simplify right side
    434.19x = 155,573.69
  5. Step 5: Solve for x
    x = 155,573.69/434.19
  6. Step 6: Final answer
    x = 358.31

Related Problems

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Double scale
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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.