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Finding the Fourth Proportional to 302,483.86, 417,556.94 and 215,325.22

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Solution

The fourth proportional to 302,483.86, 417,556.94 and 215,325.22 is: 297,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,483.86 : 417,556.94 = 215,325.22 : x
  2. Step 2: Convert to fraction form
    302,483.86/417,556.94 = 215,325.22/x
  3. Step 3: Cross multiply
    302,483.86x = 417,556.94 × 215,325.22
  4. Step 4: Simplify right side
    302,483.86x = 89,910,539,968.03
  5. Step 5: Solve for x
    x = 89,910,539,968.03/302,483.86
  6. Step 6: Final answer
    x = 297,240.78

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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.