Home / 208,796.51-288,139.94-113,303.18

Finding the Fourth Proportional to 208,796.51, 288,139.94 and 113,303.18

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Solution

The fourth proportional to 208,796.51, 288,139.94 and 113,303.18 is: 156,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,796.51 : 288,139.94 = 113,303.18 : x
  2. Step 2: Convert to fraction form
    208,796.51/288,139.94 = 113,303.18/x
  3. Step 3: Cross multiply
    208,796.51x = 288,139.94 × 113,303.18
  4. Step 4: Simplify right side
    208,796.51x = 32,647,169,479.79
  5. Step 5: Solve for x
    x = 32,647,169,479.79/208,796.51
  6. Step 6: Final answer
    x = 156,358.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.