Home / 271,895.07-407,884.09-138,702.66

Finding the Fourth Proportional to 271,895.07, 407,884.09 and 138,702.66

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Solution

The fourth proportional to 271,895.07, 407,884.09 and 138,702.66 is: 208,075.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,895.07 : 407,884.09 = 138,702.66 : x
  2. Step 2: Convert to fraction form
    271,895.07/407,884.09 = 138,702.66/x
  3. Step 3: Cross multiply
    271,895.07x = 407,884.09 × 138,702.66
  4. Step 4: Simplify right side
    271,895.07x = 56,574,608,254.68
  5. Step 5: Solve for x
    x = 56,574,608,254.68/271,895.07
  6. Step 6: Final answer
    x = 208,075.15

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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.