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Finding the Fourth Proportional to 271,789.77, 407,670.26 and 84,779.85

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Solution

The fourth proportional to 271,789.77, 407,670.26 and 84,779.85 is: 127,165.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,789.77 : 407,670.26 = 84,779.85 : x
  2. Step 2: Convert to fraction form
    271,789.77/407,670.26 = 84,779.85/x
  3. Step 3: Cross multiply
    271,789.77x = 407,670.26 × 84,779.85
  4. Step 4: Simplify right side
    271,789.77x = 34,562,223,068.36
  5. Step 5: Solve for x
    x = 34,562,223,068.36/271,789.77
  6. Step 6: Final answer
    x = 127,165.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.