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Finding the Fourth Proportional to 302,676.48, 417,493.44 and 189,302.40

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Solution

The fourth proportional to 302,676.48, 417,493.44 and 189,302.40 is: 261,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,676.48 : 417,493.44 = 189,302.40 : x
  2. Step 2: Convert to fraction form
    302,676.48/417,493.44 = 189,302.40/x
  3. Step 3: Cross multiply
    302,676.48x = 417,493.44 × 189,302.40
  4. Step 4: Simplify right side
    302,676.48x = 79,032,510,176.26
  5. Step 5: Solve for x
    x = 79,032,510,176.26/302,676.48
  6. Step 6: Final answer
    x = 261,112.16

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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.