Home / 313,233.40-470,109.30-145,012.60

Finding the Fourth Proportional to 313,233.40, 470,109.30 and 145,012.60

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Solution

The fourth proportional to 313,233.40, 470,109.30 and 145,012.60 is: 217,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,233.40 : 470,109.30 = 145,012.60 : x
  2. Step 2: Convert to fraction form
    313,233.40/470,109.30 = 145,012.60/x
  3. Step 3: Cross multiply
    313,233.40x = 470,109.30 × 145,012.60
  4. Step 4: Simplify right side
    313,233.40x = 68,171,771,877.18
  5. Step 5: Solve for x
    x = 68,171,771,877.18/313,233.40
  6. Step 6: Final answer
    x = 217,638.90

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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.