Home / 352,048.80-528,073.20-313,341.60

Finding the Fourth Proportional to 352,048.80, 528,073.20 and 313,341.60

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Solution

The fourth proportional to 352,048.80, 528,073.20 and 313,341.60 is: 470,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,048.80 : 528,073.20 = 313,341.60 : x
  2. Step 2: Convert to fraction form
    352,048.80/528,073.20 = 313,341.60/x
  3. Step 3: Cross multiply
    352,048.80x = 528,073.20 × 313,341.60
  4. Step 4: Simplify right side
    352,048.80x = 165,467,301,405.12
  5. Step 5: Solve for x
    x = 165,467,301,405.12/352,048.80
  6. Step 6: Final answer
    x = 470,012.40

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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.