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Finding the Fourth Proportional to 287,462.44, 430,994.76 and 127,450.96

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Solution

The fourth proportional to 287,462.44, 430,994.76 and 127,450.96 is: 191,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,462.44 : 430,994.76 = 127,450.96 : x
  2. Step 2: Convert to fraction form
    287,462.44/430,994.76 = 127,450.96/x
  3. Step 3: Cross multiply
    287,462.44x = 430,994.76 × 127,450.96
  4. Step 4: Simplify right side
    287,462.44x = 54,930,695,916.97
  5. Step 5: Solve for x
    x = 54,930,695,916.97/287,462.44
  6. Step 6: Final answer
    x = 191,088.25

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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.