Home / 505,999.36-759,208.85-221,543.10

Finding the Fourth Proportional to 505,999.36, 759,208.85 and 221,543.10

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Solution

The fourth proportional to 505,999.36, 759,208.85 and 221,543.10 is: 332,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,999.36 : 759,208.85 = 221,543.10 : x
  2. Step 2: Convert to fraction form
    505,999.36/759,208.85 = 221,543.10/x
  3. Step 3: Cross multiply
    505,999.36x = 759,208.85 × 221,543.10
  4. Step 4: Simplify right side
    505,999.36x = 168,197,481,899.51
  5. Step 5: Solve for x
    x = 168,197,481,899.51/505,999.36
  6. Step 6: Final answer
    x = 332,406.51

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1.5x scale

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.