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Finding the Fourth Proportional to 303,427.31, 455,000.13 and 177,103.89

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Solution

The fourth proportional to 303,427.31, 455,000.13 and 177,103.89 is: 265,573.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,427.31 : 455,000.13 = 177,103.89 : x
  2. Step 2: Convert to fraction form
    303,427.31/455,000.13 = 177,103.89/x
  3. Step 3: Cross multiply
    303,427.31x = 455,000.13 × 177,103.89
  4. Step 4: Simplify right side
    303,427.31x = 80,582,292,973.51
  5. Step 5: Solve for x
    x = 80,582,292,973.51/303,427.31
  6. Step 6: Final answer
    x = 265,573.64

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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.