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Finding the Fourth Proportional to 289,537.86, 399,578.67 and 162,254.46

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Solution

The fourth proportional to 289,537.86, 399,578.67 and 162,254.46 is: 223,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,537.86 : 399,578.67 = 162,254.46 : x
  2. Step 2: Convert to fraction form
    289,537.86/399,578.67 = 162,254.46/x
  3. Step 3: Cross multiply
    289,537.86x = 399,578.67 × 162,254.46
  4. Step 4: Simplify right side
    289,537.86x = 64,833,421,328.37
  5. Step 5: Solve for x
    x = 64,833,421,328.37/289,537.86
  6. Step 6: Final answer
    x = 223,920.36

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1.5x scale

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.