Home / 209,262.99-288,922-160,778.55

Finding the Fourth Proportional to 209,262.99, 288,922 and 160,778.55

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Solution

The fourth proportional to 209,262.99, 288,922 and 160,778.55 is: 221,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,262.99 : 288,922 = 160,778.55 : x
  2. Step 2: Convert to fraction form
    209,262.99/288,922 = 160,778.55/x
  3. Step 3: Cross multiply
    209,262.99x = 288,922 × 160,778.55
  4. Step 4: Simplify right side
    209,262.99x = 46,452,460,223.10
  5. Step 5: Solve for x
    x = 46,452,460,223.10/209,262.99
  6. Step 6: Final answer
    x = 221,981.25

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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.