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Finding the Fourth Proportional to 302,393.67, 417,129.69 and 189,019.59

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Solution

The fourth proportional to 302,393.67, 417,129.69 and 189,019.59 is: 260,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,393.67 : 417,129.69 = 189,019.59 : x
  2. Step 2: Convert to fraction form
    302,393.67/417,129.69 = 189,019.59/x
  3. Step 3: Cross multiply
    302,393.67x = 417,129.69 × 189,019.59
  4. Step 4: Simplify right side
    302,393.67x = 78,845,682,980.63
  5. Step 5: Solve for x
    x = 78,845,682,980.63/302,393.67
  6. Step 6: Final answer
    x = 260,738.54

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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.