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Finding the Fourth Proportional to 351,357.12, 484,415.28 and 223,986.24

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Solution

The fourth proportional to 351,357.12, 484,415.28 and 223,986.24 is: 308,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,357.12 : 484,415.28 = 223,986.24 : x
  2. Step 2: Convert to fraction form
    351,357.12/484,415.28 = 223,986.24/x
  3. Step 3: Cross multiply
    351,357.12x = 484,415.28 × 223,986.24
  4. Step 4: Simplify right side
    351,357.12x = 108,502,357,165.75
  5. Step 5: Solve for x
    x = 108,502,357,165.75/351,357.12
  6. Step 6: Final answer
    x = 308,809.33

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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.