Home / 455,111.38-682,281.48-188,705.62

Finding the Fourth Proportional to 455,111.38, 682,281.48 and 188,705.62

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Solution

The fourth proportional to 455,111.38, 682,281.48 and 188,705.62 is: 282,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,111.38 : 682,281.48 = 188,705.62 : x
  2. Step 2: Convert to fraction form
    455,111.38/682,281.48 = 188,705.62/x
  3. Step 3: Cross multiply
    455,111.38x = 682,281.48 × 188,705.62
  4. Step 4: Simplify right side
    455,111.38x = 128,750,349,697.92
  5. Step 5: Solve for x
    x = 128,750,349,697.92/455,111.38
  6. Step 6: Final answer
    x = 282,898.55

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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.