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Finding the Fourth Proportional to 507.85, 700.64 and 339.57

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Solution

The fourth proportional to 507.85, 700.64 and 339.57 is: 468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.85 : 700.64 = 339.57 : x
  2. Step 2: Convert to fraction form
    507.85/700.64 = 339.57/x
  3. Step 3: Cross multiply
    507.85x = 700.64 × 339.57
  4. Step 4: Simplify right side
    507.85x = 237,916.32
  5. Step 5: Solve for x
    x = 237,916.32/507.85
  6. Step 6: Final answer
    x = 468.48

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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.