Home / 443,858.06-665,885.75-207,071.57

Finding the Fourth Proportional to 443,858.06, 665,885.75 and 207,071.57

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Solution

The fourth proportional to 443,858.06, 665,885.75 and 207,071.57 is: 310,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,858.06 : 665,885.75 = 207,071.57 : x
  2. Step 2: Convert to fraction form
    443,858.06/665,885.75 = 207,071.57/x
  3. Step 3: Cross multiply
    443,858.06x = 665,885.75 × 207,071.57
  4. Step 4: Simplify right side
    443,858.06x = 137,886,007,378.45
  5. Step 5: Solve for x
    x = 137,886,007,378.45/443,858.06
  6. Step 6: Final answer
    x = 310,653.38

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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.