Home / 213,622.58-320,710.89-142,997.06

Finding the Fourth Proportional to 213,622.58, 320,710.89 and 142,997.06

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Solution

The fourth proportional to 213,622.58, 320,710.89 and 142,997.06 is: 214,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,622.58 : 320,710.89 = 142,997.06 : x
  2. Step 2: Convert to fraction form
    213,622.58/320,710.89 = 142,997.06/x
  3. Step 3: Cross multiply
    213,622.58x = 320,710.89 × 142,997.06
  4. Step 4: Simplify right side
    213,622.58x = 45,860,714,379.98
  5. Step 5: Solve for x
    x = 45,860,714,379.98/213,622.58
  6. Step 6: Final answer
    x = 214,681.02

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1.5x scale

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.