Home / 208,927.77-288,320.31-113,434.48

Finding the Fourth Proportional to 208,927.77, 288,320.31 and 113,434.48

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Solution

The fourth proportional to 208,927.77, 288,320.31 and 113,434.48 is: 156,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,927.77 : 288,320.31 = 113,434.48 : x
  2. Step 2: Convert to fraction form
    208,927.77/288,320.31 = 113,434.48/x
  3. Step 3: Cross multiply
    208,927.77x = 288,320.31 × 113,434.48
  4. Step 4: Simplify right side
    208,927.77x = 32,705,462,996.69
  5. Step 5: Solve for x
    x = 32,705,462,996.69/208,927.77
  6. Step 6: Final answer
    x = 156,539.57

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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.