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Finding the Fourth Proportional to 607.63, 838.50 and 358.93

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Solution

The fourth proportional to 607.63, 838.50 and 358.93 is: 495.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.63 : 838.50 = 358.93 : x
  2. Step 2: Convert to fraction form
    607.63/838.50 = 358.93/x
  3. Step 3: Cross multiply
    607.63x = 838.50 × 358.93
  4. Step 4: Simplify right side
    607.63x = 300,962.81
  5. Step 5: Solve for x
    x = 300,962.81/607.63
  6. Step 6: Final answer
    x = 495.31

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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.