Home / 208,913.85-288,307.72-118,268.16

Finding the Fourth Proportional to 208,913.85, 288,307.72 and 118,268.16

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Solution

The fourth proportional to 208,913.85, 288,307.72 and 118,268.16 is: 163,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.85 : 288,307.72 = 118,268.16 : x
  2. Step 2: Convert to fraction form
    208,913.85/288,307.72 = 118,268.16/x
  3. Step 3: Cross multiply
    208,913.85x = 288,307.72 × 118,268.16
  4. Step 4: Simplify right side
    208,913.85x = 34,097,623,983.29
  5. Step 5: Solve for x
    x = 34,097,623,983.29/208,913.85
  6. Step 6: Final answer
    x = 163,213.81

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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.