Home / 208,386.26-312,461.23-66,203.92

Finding the Fourth Proportional to 208,386.26, 312,461.23 and 66,203.92

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Solution

The fourth proportional to 208,386.26, 312,461.23 and 66,203.92 is: 99,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,386.26 : 312,461.23 = 66,203.92 : x
  2. Step 2: Convert to fraction form
    208,386.26/312,461.23 = 66,203.92/x
  3. Step 3: Cross multiply
    208,386.26x = 312,461.23 × 66,203.92
  4. Step 4: Simplify right side
    208,386.26x = 20,686,158,274.02
  5. Step 5: Solve for x
    x = 20,686,158,274.02/208,386.26
  6. Step 6: Final answer
    x = 99,268.34

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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.