Home / 318,484.02-477,788.67-105,243.33

Finding the Fourth Proportional to 318,484.02, 477,788.67 and 105,243.33

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Solution

The fourth proportional to 318,484.02, 477,788.67 and 105,243.33 is: 157,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,484.02 : 477,788.67 = 105,243.33 : x
  2. Step 2: Convert to fraction form
    318,484.02/477,788.67 = 105,243.33/x
  3. Step 3: Cross multiply
    318,484.02x = 477,788.67 × 105,243.33
  4. Step 4: Simplify right side
    318,484.02x = 50,284,070,667.07
  5. Step 5: Solve for x
    x = 50,284,070,667.07/318,484.02
  6. Step 6: Final answer
    x = 157,885.69

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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.