Home / 208,869.16-288,240.71-113,376.54

Finding the Fourth Proportional to 208,869.16, 288,240.71 and 113,376.54

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Solution

The fourth proportional to 208,869.16, 288,240.71 and 113,376.54 is: 156,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,869.16 : 288,240.71 = 113,376.54 : x
  2. Step 2: Convert to fraction form
    208,869.16/288,240.71 = 113,376.54/x
  3. Step 3: Cross multiply
    208,869.16x = 288,240.71 × 113,376.54
  4. Step 4: Simplify right side
    208,869.16x = 32,679,734,386.94
  5. Step 5: Solve for x
    x = 32,679,734,386.94/208,869.16
  6. Step 6: Final answer
    x = 156,460.31

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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.