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Finding the Fourth Proportional to 289,450.68, 399,222.52 and 253,578.48

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Solution

The fourth proportional to 289,450.68, 399,222.52 and 253,578.48 is: 349,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,450.68 : 399,222.52 = 253,578.48 : x
  2. Step 2: Convert to fraction form
    289,450.68/399,222.52 = 253,578.48/x
  3. Step 3: Cross multiply
    289,450.68x = 399,222.52 × 253,578.48
  4. Step 4: Simplify right side
    289,450.68x = 101,234,239,803.37
  5. Step 5: Solve for x
    x = 101,234,239,803.37/289,450.68
  6. Step 6: Final answer
    x = 349,746.08

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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.