Home / 288,501.11-398,186.54-190,211.77

Finding the Fourth Proportional to 288,501.11, 398,186.54 and 190,211.77

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Solution

The fourth proportional to 288,501.11, 398,186.54 and 190,211.77 is: 262,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,501.11 : 398,186.54 = 190,211.77 : x
  2. Step 2: Convert to fraction form
    288,501.11/398,186.54 = 190,211.77/x
  3. Step 3: Cross multiply
    288,501.11x = 398,186.54 × 190,211.77
  4. Step 4: Simplify right side
    288,501.11x = 75,739,766,043.64
  5. Step 5: Solve for x
    x = 75,739,766,043.64/288,501.11
  6. Step 6: Final answer
    x = 262,528.51

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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.