Home / 318,428.72-439,431.62-175,185.69

Finding the Fourth Proportional to 318,428.72, 439,431.62 and 175,185.69

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Solution

The fourth proportional to 318,428.72, 439,431.62 and 175,185.69 is: 241,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,428.72 : 439,431.62 = 175,185.69 : x
  2. Step 2: Convert to fraction form
    318,428.72/439,431.62 = 175,185.69/x
  3. Step 3: Cross multiply
    318,428.72x = 439,431.62 × 175,185.69
  4. Step 4: Simplify right side
    318,428.72x = 76,982,130,239.96
  5. Step 5: Solve for x
    x = 76,982,130,239.96/318,428.72
  6. Step 6: Final answer
    x = 241,756.24

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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.