Home / 209,400.90-288,908.06-118,749.75

Finding the Fourth Proportional to 209,400.90, 288,908.06 and 118,749.75

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Solution

The fourth proportional to 209,400.90, 288,908.06 and 118,749.75 is: 163,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,400.90 : 288,908.06 = 118,749.75 : x
  2. Step 2: Convert to fraction form
    209,400.90/288,908.06 = 118,749.75/x
  3. Step 3: Cross multiply
    209,400.90x = 288,908.06 × 118,749.75
  4. Step 4: Simplify right side
    209,400.90x = 34,307,759,897.99
  5. Step 5: Solve for x
    x = 34,307,759,897.99/209,400.90
  6. Step 6: Final answer
    x = 163,837.69

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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.