Home / 208,913.97-288,307.89-118,268.29

Finding the Fourth Proportional to 208,913.97, 288,307.89 and 118,268.29

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Solution

The fourth proportional to 208,913.97, 288,307.89 and 118,268.29 is: 163,213.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.97 : 288,307.89 = 118,268.29 : x
  2. Step 2: Convert to fraction form
    208,913.97/288,307.89 = 118,268.29/x
  3. Step 3: Cross multiply
    208,913.97x = 288,307.89 × 118,268.29
  4. Step 4: Simplify right side
    208,913.97x = 34,097,680,423.04
  5. Step 5: Solve for x
    x = 34,097,680,423.04/208,913.97
  6. Step 6: Final answer
    x = 163,213.98

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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.