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Finding the Fourth Proportional to 339,307.68, 468,265.70 and 188,405.76

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Solution

The fourth proportional to 339,307.68, 468,265.70 and 188,405.76 is: 260,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,307.68 : 468,265.70 = 188,405.76 : x
  2. Step 2: Convert to fraction form
    339,307.68/468,265.70 = 188,405.76/x
  3. Step 3: Cross multiply
    339,307.68x = 468,265.70 × 188,405.76
  4. Step 4: Simplify right side
    339,307.68x = 88,223,955,090.43
  5. Step 5: Solve for x
    x = 88,223,955,090.43/339,307.68
  6. Step 6: Final answer
    x = 260,011.67

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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.