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Finding the Fourth Proportional to 490,002.60, 734,656.41 and 190,230.51

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Solution

The fourth proportional to 490,002.60, 734,656.41 and 190,230.51 is: 285,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,002.60 : 734,656.41 = 190,230.51 : x
  2. Step 2: Convert to fraction form
    490,002.60/734,656.41 = 190,230.51/x
  3. Step 3: Cross multiply
    490,002.60x = 734,656.41 × 190,230.51
  4. Step 4: Simplify right side
    490,002.60x = 139,754,063,549.07
  5. Step 5: Solve for x
    x = 139,754,063,549.07/490,002.60
  6. Step 6: Final answer
    x = 285,210.86

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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.