Home / 336,782.21-505,172.40-137,055.34

Finding the Fourth Proportional to 336,782.21, 505,172.40 and 137,055.34

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Solution

The fourth proportional to 336,782.21, 505,172.40 and 137,055.34 is: 205,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,782.21 : 505,172.40 = 137,055.34 : x
  2. Step 2: Convert to fraction form
    336,782.21/505,172.40 = 137,055.34/x
  3. Step 3: Cross multiply
    336,782.21x = 505,172.40 × 137,055.34
  4. Step 4: Simplify right side
    336,782.21x = 69,236,575,158.12
  5. Step 5: Solve for x
    x = 69,236,575,158.12/336,782.21
  6. Step 6: Final answer
    x = 205,582.64

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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.