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Finding the Fourth Proportional to 503.58, 755.32 and 156.90

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Solution

The fourth proportional to 503.58, 755.32 and 156.90 is: 235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.58 : 755.32 = 156.90 : x
  2. Step 2: Convert to fraction form
    503.58/755.32 = 156.90/x
  3. Step 3: Cross multiply
    503.58x = 755.32 × 156.90
  4. Step 4: Simplify right side
    503.58x = 118,509.71
  5. Step 5: Solve for x
    x = 118,509.71/503.58
  6. Step 6: Final answer
    x = 235.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.