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Finding the Fourth Proportional to 254,502, 351,245.16 and 153,900.72

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Solution

The fourth proportional to 254,502, 351,245.16 and 153,900.72 is: 212,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,502 : 351,245.16 = 153,900.72 : x
  2. Step 2: Convert to fraction form
    254,502/351,245.16 = 153,900.72/x
  3. Step 3: Cross multiply
    254,502x = 351,245.16 × 153,900.72
  4. Step 4: Simplify right side
    254,502x = 54,056,883,020.52
  5. Step 5: Solve for x
    x = 54,056,883,020.52/254,502
  6. Step 6: Final answer
    x = 212,402.59

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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.