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Finding the Fourth Proportional to 253,612.55, 380,492.91 and 113,338.37

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Solution

The fourth proportional to 253,612.55, 380,492.91 and 113,338.37 is: 170,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,612.55 : 380,492.91 = 113,338.37 : x
  2. Step 2: Convert to fraction form
    253,612.55/380,492.91 = 113,338.37/x
  3. Step 3: Cross multiply
    253,612.55x = 380,492.91 × 113,338.37
  4. Step 4: Simplify right side
    253,612.55x = 43,124,447,167.19
  5. Step 5: Solve for x
    x = 43,124,447,167.19/253,612.55
  6. Step 6: Final answer
    x = 170,040.67

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1.5x scale

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.