Home / 290,611.32-436,085.46-122,118.36

Finding the Fourth Proportional to 290,611.32, 436,085.46 and 122,118.36

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Solution

The fourth proportional to 290,611.32, 436,085.46 and 122,118.36 is: 183,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,611.32 : 436,085.46 = 122,118.36 : x
  2. Step 2: Convert to fraction form
    290,611.32/436,085.46 = 122,118.36/x
  3. Step 3: Cross multiply
    290,611.32x = 436,085.46 × 122,118.36
  4. Step 4: Simplify right side
    290,611.32x = 53,254,041,195.05
  5. Step 5: Solve for x
    x = 53,254,041,195.05/290,611.32
  6. Step 6: Final answer
    x = 183,248.34

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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.