Home / 209,029.88-288,465.03-118,404.66

Finding the Fourth Proportional to 209,029.88, 288,465.03 and 118,404.66

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Solution

The fourth proportional to 209,029.88, 288,465.03 and 118,404.66 is: 163,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,029.88 : 288,465.03 = 118,404.66 : x
  2. Step 2: Convert to fraction form
    209,029.88/288,465.03 = 118,404.66/x
  3. Step 3: Cross multiply
    209,029.88x = 288,465.03 × 118,404.66
  4. Step 4: Simplify right side
    209,029.88x = 34,155,603,799.04
  5. Step 5: Solve for x
    x = 34,155,603,799.04/209,029.88
  6. Step 6: Final answer
    x = 163,400.58

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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.