Home / 254,458.24-381,106-121,431.90

Finding the Fourth Proportional to 254,458.24, 381,106 and 121,431.90

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Solution

The fourth proportional to 254,458.24, 381,106 and 121,431.90 is: 181,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,458.24 : 381,106 = 121,431.90 : x
  2. Step 2: Convert to fraction form
    254,458.24/381,106 = 121,431.90/x
  3. Step 3: Cross multiply
    254,458.24x = 381,106 × 121,431.90
  4. Step 4: Simplify right side
    254,458.24x = 46,278,425,681.40
  5. Step 5: Solve for x
    x = 46,278,425,681.40/254,458.24
  6. Step 6: Final answer
    x = 181,870.41

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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.