Home / 321,335.48-443,433.64-176,138.25

Finding the Fourth Proportional to 321,335.48, 443,433.64 and 176,138.25

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Solution

The fourth proportional to 321,335.48, 443,433.64 and 176,138.25 is: 243,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,335.48 : 443,433.64 = 176,138.25 : x
  2. Step 2: Convert to fraction form
    321,335.48/443,433.64 = 176,138.25/x
  3. Step 3: Cross multiply
    321,335.48x = 443,433.64 × 176,138.25
  4. Step 4: Simplify right side
    321,335.48x = 78,105,624,125.08
  5. Step 5: Solve for x
    x = 78,105,624,125.08/321,335.48
  6. Step 6: Final answer
    x = 243,065.67

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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.