Home / 289,331.04-434,277.06-139,676.64

Finding the Fourth Proportional to 289,331.04, 434,277.06 and 139,676.64

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Solution

The fourth proportional to 289,331.04, 434,277.06 and 139,676.64 is: 209,650.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,331.04 : 434,277.06 = 139,676.64 : x
  2. Step 2: Convert to fraction form
    289,331.04/434,277.06 = 139,676.64/x
  3. Step 3: Cross multiply
    289,331.04x = 434,277.06 × 139,676.64
  4. Step 4: Simplify right side
    289,331.04x = 60,658,360,569.88
  5. Step 5: Solve for x
    x = 60,658,360,569.88/289,331.04
  6. Step 6: Final answer
    x = 209,650.37

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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.