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Finding the Fourth Proportional to 603,260.19, 904,889.34 and 153,981

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Solution

The fourth proportional to 603,260.19, 904,889.34 and 153,981 is: 230,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,260.19 : 904,889.34 = 153,981 : x
  2. Step 2: Convert to fraction form
    603,260.19/904,889.34 = 153,981/x
  3. Step 3: Cross multiply
    603,260.19x = 904,889.34 × 153,981
  4. Step 4: Simplify right side
    603,260.19x = 139,335,765,462.54
  5. Step 5: Solve for x
    x = 139,335,765,462.54/603,260.19
  6. Step 6: Final answer
    x = 230,971.26

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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.