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Finding the Fourth Proportional to 247,352.99, 341,347.23 and 139,920.73

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Solution

The fourth proportional to 247,352.99, 341,347.23 and 139,920.73 is: 193,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,352.99 : 341,347.23 = 139,920.73 : x
  2. Step 2: Convert to fraction form
    247,352.99/341,347.23 = 139,920.73/x
  3. Step 3: Cross multiply
    247,352.99x = 341,347.23 × 139,920.73
  4. Step 4: Simplify right side
    247,352.99x = 47,761,552,751.71
  5. Step 5: Solve for x
    x = 47,761,552,751.71/247,352.99
  6. Step 6: Final answer
    x = 193,090.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.