Home / 208,921.88-288,319.10-118,276.00

Finding the Fourth Proportional to 208,921.88, 288,319.10 and 118,276.00

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Solution

The fourth proportional to 208,921.88, 288,319.10 and 118,276.00 is: 163,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,921.88 : 288,319.10 = 118,276.00 : x
  2. Step 2: Convert to fraction form
    208,921.88/288,319.10 = 118,276.00/x
  3. Step 3: Cross multiply
    208,921.88x = 288,319.10 × 118,276.00
  4. Step 4: Simplify right side
    208,921.88x = 34,101,228,559.42
  5. Step 5: Solve for x
    x = 34,101,228,559.42/208,921.88
  6. Step 6: Final answer
    x = 163,224.78

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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.