Home / 420,866.30-631,575.66-154,629.02

Finding the Fourth Proportional to 420,866.30, 631,575.66 and 154,629.02

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Solution

The fourth proportional to 420,866.30, 631,575.66 and 154,629.02 is: 232,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,866.30 : 631,575.66 = 154,629.02 : x
  2. Step 2: Convert to fraction form
    420,866.30/631,575.66 = 154,629.02/x
  3. Step 3: Cross multiply
    420,866.30x = 631,575.66 × 154,629.02
  4. Step 4: Simplify right side
    420,866.30x = 97,659,925,361.65
  5. Step 5: Solve for x
    x = 97,659,925,361.65/420,866.30
  6. Step 6: Final answer
    x = 232,045.01

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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.