Home / 208,072.56-312,127.29-58,314.66

Finding the Fourth Proportional to 208,072.56, 312,127.29 and 58,314.66

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Solution

The fourth proportional to 208,072.56, 312,127.29 and 58,314.66 is: 87,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,072.56 : 312,127.29 = 58,314.66 : x
  2. Step 2: Convert to fraction form
    208,072.56/312,127.29 = 58,314.66/x
  3. Step 3: Cross multiply
    208,072.56x = 312,127.29 × 58,314.66
  4. Step 4: Simplify right side
    208,072.56x = 18,201,596,793.07
  5. Step 5: Solve for x
    x = 18,201,596,793.07/208,072.56
  6. Step 6: Final answer
    x = 87,477.16

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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.