Home / 209,218.53-288,712.26-118,569.18

Finding the Fourth Proportional to 209,218.53, 288,712.26 and 118,569.18

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Solution

The fourth proportional to 209,218.53, 288,712.26 and 118,569.18 is: 163,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,218.53 : 288,712.26 = 118,569.18 : x
  2. Step 2: Convert to fraction form
    209,218.53/288,712.26 = 118,569.18/x
  3. Step 3: Cross multiply
    209,218.53x = 288,712.26 × 118,569.18
  4. Step 4: Simplify right side
    209,218.53x = 34,232,375,924.15
  5. Step 5: Solve for x
    x = 34,232,375,924.15/209,218.53
  6. Step 6: Final answer
    x = 163,620.19

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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.