Home / 256,139.07-353,470.25-141,424.85

Finding the Fourth Proportional to 256,139.07, 353,470.25 and 141,424.85

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Solution

The fourth proportional to 256,139.07, 353,470.25 and 141,424.85 is: 195,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,139.07 : 353,470.25 = 141,424.85 : x
  2. Step 2: Convert to fraction form
    256,139.07/353,470.25 = 141,424.85/x
  3. Step 3: Cross multiply
    256,139.07x = 353,470.25 × 141,424.85
  4. Step 4: Simplify right side
    256,139.07x = 49,989,477,085.71
  5. Step 5: Solve for x
    x = 49,989,477,085.71/256,139.07
  6. Step 6: Final answer
    x = 195,165.37

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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.