Home / 209,355.23-313,913.91-142,875.89

Finding the Fourth Proportional to 209,355.23, 313,913.91 and 142,875.89

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Solution

The fourth proportional to 209,355.23, 313,913.91 and 142,875.89 is: 214,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,355.23 : 313,913.91 = 142,875.89 : x
  2. Step 2: Convert to fraction form
    209,355.23/313,913.91 = 142,875.89/x
  3. Step 3: Cross multiply
    209,355.23x = 313,913.91 × 142,875.89
  4. Step 4: Simplify right side
    209,355.23x = 44,850,729,274.63
  5. Step 5: Solve for x
    x = 44,850,729,274.63/209,355.23
  6. Step 6: Final answer
    x = 214,232.67

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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.