Home / 245,351.45-338,534.95-143,357.18

Finding the Fourth Proportional to 245,351.45, 338,534.95 and 143,357.18

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Solution

The fourth proportional to 245,351.45, 338,534.95 and 143,357.18 is: 197,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,351.45 : 338,534.95 = 143,357.18 : x
  2. Step 2: Convert to fraction form
    245,351.45/338,534.95 = 143,357.18/x
  3. Step 3: Cross multiply
    245,351.45x = 338,534.95 × 143,357.18
  4. Step 4: Simplify right side
    245,351.45x = 48,531,416,837.56
  5. Step 5: Solve for x
    x = 48,531,416,837.56/245,351.45
  6. Step 6: Final answer
    x = 197,803.67

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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.