Home / 208,290.36-312,428.34-58,531.80

Finding the Fourth Proportional to 208,290.36, 312,428.34 and 58,531.80

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Solution

The fourth proportional to 208,290.36, 312,428.34 and 58,531.80 is: 87,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,290.36 : 312,428.34 = 58,531.80 : x
  2. Step 2: Convert to fraction form
    208,290.36/312,428.34 = 58,531.80/x
  3. Step 3: Cross multiply
    208,290.36x = 312,428.34 × 58,531.80
  4. Step 4: Simplify right side
    208,290.36x = 18,286,993,111.21
  5. Step 5: Solve for x
    x = 18,286,993,111.21/208,290.36
  6. Step 6: Final answer
    x = 87,795.68

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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.