Home / 208,913.11-288,317.93-118,285.04

Finding the Fourth Proportional to 208,913.11, 288,317.93 and 118,285.04

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Solution

The fourth proportional to 208,913.11, 288,317.93 and 118,285.04 is: 163,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.11 : 288,317.93 = 118,285.04 : x
  2. Step 2: Convert to fraction form
    208,913.11/288,317.93 = 118,285.04/x
  3. Step 3: Cross multiply
    208,913.11x = 288,317.93 × 118,285.04
  4. Step 4: Simplify right side
    208,913.11x = 34,103,698,677.49
  5. Step 5: Solve for x
    x = 34,103,698,677.49/208,913.11
  6. Step 6: Final answer
    x = 163,243.46

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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.