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Finding the Fourth Proportional to 340.10, 507.65 and 293.94

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Solution

The fourth proportional to 340.10, 507.65 and 293.94 is: 438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.10 : 507.65 = 293.94 : x
  2. Step 2: Convert to fraction form
    340.10/507.65 = 293.94/x
  3. Step 3: Cross multiply
    340.10x = 507.65 × 293.94
  4. Step 4: Simplify right side
    340.10x = 149,218.64
  5. Step 5: Solve for x
    x = 149,218.64/340.10
  6. Step 6: Final answer
    x = 438.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.