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Finding the Fourth Proportional to 258,814.20, 357,358.20 and 254,680.80

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Solution

The fourth proportional to 258,814.20, 357,358.20 and 254,680.80 is: 351,651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,814.20 : 357,358.20 = 254,680.80 : x
  2. Step 2: Convert to fraction form
    258,814.20/357,358.20 = 254,680.80/x
  3. Step 3: Cross multiply
    258,814.20x = 357,358.20 × 254,680.80
  4. Step 4: Simplify right side
    258,814.20x = 91,012,272,262.56
  5. Step 5: Solve for x
    x = 91,012,272,262.56/258,814.20
  6. Step 6: Final answer
    x = 351,651.00

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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.