Home / 313,895.20-470,228.40-188,864.80

Finding the Fourth Proportional to 313,895.20, 470,228.40 and 188,864.80

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Solution

The fourth proportional to 313,895.20, 470,228.40 and 188,864.80 is: 282,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,895.20 : 470,228.40 = 188,864.80 : x
  2. Step 2: Convert to fraction form
    313,895.20/470,228.40 = 188,864.80/x
  3. Step 3: Cross multiply
    313,895.20x = 470,228.40 × 188,864.80
  4. Step 4: Simplify right side
    313,895.20x = 88,809,592,720.32
  5. Step 5: Solve for x
    x = 88,809,592,720.32/313,895.20
  6. Step 6: Final answer
    x = 282,927.53

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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.