Home / 313,564.14-470,377.35-100,278.47

Finding the Fourth Proportional to 313,564.14, 470,377.35 and 100,278.47

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Solution

The fourth proportional to 313,564.14, 470,377.35 and 100,278.47 is: 150,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,564.14 : 470,377.35 = 100,278.47 : x
  2. Step 2: Convert to fraction form
    313,564.14/470,377.35 = 100,278.47/x
  3. Step 3: Cross multiply
    313,564.14x = 470,377.35 × 100,278.47
  4. Step 4: Simplify right side
    313,564.14x = 47,168,718,628.77
  5. Step 5: Solve for x
    x = 47,168,718,628.77/313,564.14
  6. Step 6: Final answer
    x = 150,427.66

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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.