Home / 208,851.32-288,146.20-118,198.28

Finding the Fourth Proportional to 208,851.32, 288,146.20 and 118,198.28

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Solution

The fourth proportional to 208,851.32, 288,146.20 and 118,198.28 is: 163,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,851.32 : 288,146.20 = 118,198.28 : x
  2. Step 2: Convert to fraction form
    208,851.32/288,146.20 = 118,198.28/x
  3. Step 3: Cross multiply
    208,851.32x = 288,146.20 × 118,198.28
  4. Step 4: Simplify right side
    208,851.32x = 34,058,385,228.54
  5. Step 5: Solve for x
    x = 34,058,385,228.54/208,851.32
  6. Step 6: Final answer
    x = 163,074.79

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1.5x scale

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.