Home / 209,004.03-288,431.28-122,969.07

Finding the Fourth Proportional to 209,004.03, 288,431.28 and 122,969.07

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Solution

The fourth proportional to 209,004.03, 288,431.28 and 122,969.07 is: 169,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,004.03 : 288,431.28 = 122,969.07 : x
  2. Step 2: Convert to fraction form
    209,004.03/288,431.28 = 122,969.07/x
  3. Step 3: Cross multiply
    209,004.03x = 288,431.28 × 122,969.07
  4. Step 4: Simplify right side
    209,004.03x = 35,468,126,260.51
  5. Step 5: Solve for x
    x = 35,468,126,260.51/209,004.03
  6. Step 6: Final answer
    x = 169,700.68

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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.