Home / 459,261.63-688,739.09-192,972.51

Finding the Fourth Proportional to 459,261.63, 688,739.09 and 192,972.51

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Solution

The fourth proportional to 459,261.63, 688,739.09 and 192,972.51 is: 289,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,261.63 : 688,739.09 = 192,972.51 : x
  2. Step 2: Convert to fraction form
    459,261.63/688,739.09 = 192,972.51/x
  3. Step 3: Cross multiply
    459,261.63x = 688,739.09 × 192,972.51
  4. Step 4: Simplify right side
    459,261.63x = 132,907,709,967.55
  5. Step 5: Solve for x
    x = 132,907,709,967.55/459,261.63
  6. Step 6: Final answer
    x = 289,394.33

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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.