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Finding the Fourth Proportional to 340,085.79, 469,322.34 and 194,888.70

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Solution

The fourth proportional to 340,085.79, 469,322.34 and 194,888.70 is: 268,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,085.79 : 469,322.34 = 194,888.70 : x
  2. Step 2: Convert to fraction form
    340,085.79/469,322.34 = 194,888.70/x
  3. Step 3: Cross multiply
    340,085.79x = 469,322.34 × 194,888.70
  4. Step 4: Simplify right side
    340,085.79x = 91,465,620,723.56
  5. Step 5: Solve for x
    x = 91,465,620,723.56/340,085.79
  6. Step 6: Final answer
    x = 268,948.67

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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.