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Finding the Fourth Proportional to 301,278.99, 451,916.52 and 76,637.51

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Solution

The fourth proportional to 301,278.99, 451,916.52 and 76,637.51 is: 114,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,278.99 : 451,916.52 = 76,637.51 : x
  2. Step 2: Convert to fraction form
    301,278.99/451,916.52 = 76,637.51/x
  3. Step 3: Cross multiply
    301,278.99x = 451,916.52 × 76,637.51
  4. Step 4: Simplify right side
    301,278.99x = 34,633,754,561.08
  5. Step 5: Solve for x
    x = 34,633,754,561.08/301,278.99
  6. Step 6: Final answer
    x = 114,955.76

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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.