Home / 200,430.90-276,583.95-109,782.18

Finding the Fourth Proportional to 200,430.90, 276,583.95 and 109,782.18

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Solution

The fourth proportional to 200,430.90, 276,583.95 and 109,782.18 is: 151,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,430.90 : 276,583.95 = 109,782.18 : x
  2. Step 2: Convert to fraction form
    200,430.90/276,583.95 = 109,782.18/x
  3. Step 3: Cross multiply
    200,430.90x = 276,583.95 × 109,782.18
  4. Step 4: Simplify right side
    200,430.90x = 30,363,988,984.01
  5. Step 5: Solve for x
    x = 30,363,988,984.01/200,430.90
  6. Step 6: Final answer
    x = 151,493.55

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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.