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Finding the Fourth Proportional to 490,825.68, 736,238.16 and 158,401.68

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Solution

The fourth proportional to 490,825.68, 736,238.16 and 158,401.68 is: 237,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,825.68 : 736,238.16 = 158,401.68 : x
  2. Step 2: Convert to fraction form
    490,825.68/736,238.16 = 158,401.68/x
  3. Step 3: Cross multiply
    490,825.68x = 736,238.16 × 158,401.68
  4. Step 4: Simplify right side
    490,825.68x = 116,621,361,424.11
  5. Step 5: Solve for x
    x = 116,621,361,424.11/490,825.68
  6. Step 6: Final answer
    x = 237,602.40

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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.