Home / 256,113.71-353,108.33-210,003.45

Finding the Fourth Proportional to 256,113.71, 353,108.33 and 210,003.45

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Solution

The fourth proportional to 256,113.71, 353,108.33 and 210,003.45 is: 289,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,113.71 : 353,108.33 = 210,003.45 : x
  2. Step 2: Convert to fraction form
    256,113.71/353,108.33 = 210,003.45/x
  3. Step 3: Cross multiply
    256,113.71x = 353,108.33 × 210,003.45
  4. Step 4: Simplify right side
    256,113.71x = 74,153,967,523.74
  5. Step 5: Solve for x
    x = 74,153,967,523.74/256,113.71
  6. Step 6: Final answer
    x = 289,535.34

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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.