Home / 256,115.20-353,110.40-210,004.95

Finding the Fourth Proportional to 256,115.20, 353,110.40 and 210,004.95

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Solution

The fourth proportional to 256,115.20, 353,110.40 and 210,004.95 is: 289,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,115.20 : 353,110.40 = 210,004.95 : x
  2. Step 2: Convert to fraction form
    256,115.20/353,110.40 = 210,004.95/x
  3. Step 3: Cross multiply
    256,115.20x = 353,110.40 × 210,004.95
  4. Step 4: Simplify right side
    256,115.20x = 74,154,931,896.48
  5. Step 5: Solve for x
    x = 74,154,931,896.48/256,115.20
  6. Step 6: Final answer
    x = 289,537.41

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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.