Home / 354,905.90-489,751.73-201,941.00

Finding the Fourth Proportional to 354,905.90, 489,751.73 and 201,941.00

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Solution

The fourth proportional to 354,905.90, 489,751.73 and 201,941.00 is: 278,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,905.90 : 489,751.73 = 201,941.00 : x
  2. Step 2: Convert to fraction form
    354,905.90/489,751.73 = 201,941.00/x
  3. Step 3: Cross multiply
    354,905.90x = 489,751.73 × 201,941.00
  4. Step 4: Simplify right side
    354,905.90x = 98,900,950,649.47
  5. Step 5: Solve for x
    x = 98,900,950,649.47/354,905.90
  6. Step 6: Final answer
    x = 278,668.10

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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.