Home / 470,077.07-648,706.35-255,217.15

Finding the Fourth Proportional to 470,077.07, 648,706.35 and 255,217.15

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Solution

The fourth proportional to 470,077.07, 648,706.35 and 255,217.15 is: 352,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,077.07 : 648,706.35 = 255,217.15 : x
  2. Step 2: Convert to fraction form
    470,077.07/648,706.35 = 255,217.15/x
  3. Step 3: Cross multiply
    470,077.07x = 648,706.35 × 255,217.15
  4. Step 4: Simplify right side
    470,077.07x = 165,560,987,272.94
  5. Step 5: Solve for x
    x = 165,560,987,272.94/470,077.07
  6. Step 6: Final answer
    x = 352,199.67

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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.