Home / 256,112.82-353,107.13-210,002.58

Finding the Fourth Proportional to 256,112.82, 353,107.13 and 210,002.58

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Solution

The fourth proportional to 256,112.82, 353,107.13 and 210,002.58 is: 289,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,112.82 : 353,107.13 = 210,002.58 : x
  2. Step 2: Convert to fraction form
    256,112.82/353,107.13 = 210,002.58/x
  3. Step 3: Cross multiply
    256,112.82x = 353,107.13 × 210,002.58
  4. Step 4: Simplify right side
    256,112.82x = 74,153,406,550.86
  5. Step 5: Solve for x
    x = 74,153,406,550.86/256,112.82
  6. Step 6: Final answer
    x = 289,534.15

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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.