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Finding the Fourth Proportional to 317,090.88, 437,523.78 and 188,005.50

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Solution

The fourth proportional to 317,090.88, 437,523.78 and 188,005.50 is: 259,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,090.88 : 437,523.78 = 188,005.50 : x
  2. Step 2: Convert to fraction form
    317,090.88/437,523.78 = 188,005.50/x
  3. Step 3: Cross multiply
    317,090.88x = 437,523.78 × 188,005.50
  4. Step 4: Simplify right side
    317,090.88x = 82,256,877,725.81
  5. Step 5: Solve for x
    x = 82,256,877,725.81/317,090.88
  6. Step 6: Final answer
    x = 259,411.05

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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.