Home / 660,131.10-990,188.82-210,846.06

Finding the Fourth Proportional to 660,131.10, 990,188.82 and 210,846.06

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Solution

The fourth proportional to 660,131.10, 990,188.82 and 210,846.06 is: 316,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,131.10 : 990,188.82 = 210,846.06 : x
  2. Step 2: Convert to fraction form
    660,131.10/990,188.82 = 210,846.06/x
  3. Step 3: Cross multiply
    660,131.10x = 990,188.82 × 210,846.06
  4. Step 4: Simplify right side
    660,131.10x = 208,777,411,353.05
  5. Step 5: Solve for x
    x = 208,777,411,353.05/660,131.10
  6. Step 6: Final answer
    x = 316,266.59

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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.