Home / 403,256.24-556,495.60-221,986.32

Finding the Fourth Proportional to 403,256.24, 556,495.60 and 221,986.32

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Solution

The fourth proportional to 403,256.24, 556,495.60 and 221,986.32 is: 306,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,256.24 : 556,495.60 = 221,986.32 : x
  2. Step 2: Convert to fraction form
    403,256.24/556,495.60 = 221,986.32/x
  3. Step 3: Cross multiply
    403,256.24x = 556,495.60 × 221,986.32
  4. Step 4: Simplify right side
    403,256.24x = 123,534,410,340.19
  5. Step 5: Solve for x
    x = 123,534,410,340.19/403,256.24
  6. Step 6: Final answer
    x = 306,342.22

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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.