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Finding the Fourth Proportional to 228,147.99, 314,749.08 and 131,328.67

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Solution

The fourth proportional to 228,147.99, 314,749.08 and 131,328.67 is: 181,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,147.99 : 314,749.08 = 131,328.67 : x
  2. Step 2: Convert to fraction form
    228,147.99/314,749.08 = 131,328.67/x
  3. Step 3: Cross multiply
    228,147.99x = 314,749.08 × 131,328.67
  4. Step 4: Simplify right side
    228,147.99x = 41,335,579,486.67
  5. Step 5: Solve for x
    x = 41,335,579,486.67/228,147.99
  6. Step 6: Final answer
    x = 181,178.81

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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.