Home / 209,137.25-288,608.64-118,510.53

Finding the Fourth Proportional to 209,137.25, 288,608.64 and 118,510.53

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Solution

The fourth proportional to 209,137.25, 288,608.64 and 118,510.53 is: 163,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,137.25 : 288,608.64 = 118,510.53 : x
  2. Step 2: Convert to fraction form
    209,137.25/288,608.64 = 118,510.53/x
  3. Step 3: Cross multiply
    209,137.25x = 288,608.64 × 118,510.53
  4. Step 4: Simplify right side
    209,137.25x = 34,203,164,415.68
  5. Step 5: Solve for x
    x = 34,203,164,415.68/209,137.25
  6. Step 6: Final answer
    x = 163,544.10

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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.