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Finding the Fourth Proportional to 230,453.20, 318,172.20 and 188,112.40

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Solution

The fourth proportional to 230,453.20, 318,172.20 and 188,112.40 is: 259,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,453.20 : 318,172.20 = 188,112.40 : x
  2. Step 2: Convert to fraction form
    230,453.20/318,172.20 = 188,112.40/x
  3. Step 3: Cross multiply
    230,453.20x = 318,172.20 × 188,112.40
  4. Step 4: Simplify right side
    230,453.20x = 59,852,136,155.28
  5. Step 5: Solve for x
    x = 59,852,136,155.28/230,453.20
  6. Step 6: Final answer
    x = 259,714.93

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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.