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Finding the Fourth Proportional to 602.07, 830.82 and 340.02

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Solution

The fourth proportional to 602.07, 830.82 and 340.02 is: 469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.07 : 830.82 = 340.02 : x
  2. Step 2: Convert to fraction form
    602.07/830.82 = 340.02/x
  3. Step 3: Cross multiply
    602.07x = 830.82 × 340.02
  4. Step 4: Simplify right side
    602.07x = 282,495.42
  5. Step 5: Solve for x
    x = 282,495.42/602.07
  6. Step 6: Final answer
    x = 469.21

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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.