Home / 256,721.81-354,158.23-166,107.32

Finding the Fourth Proportional to 256,721.81, 354,158.23 and 166,107.32

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Solution

The fourth proportional to 256,721.81, 354,158.23 and 166,107.32 is: 229,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,721.81 : 354,158.23 = 166,107.32 : x
  2. Step 2: Convert to fraction form
    256,721.81/354,158.23 = 166,107.32/x
  3. Step 3: Cross multiply
    256,721.81x = 354,158.23 × 166,107.32
  4. Step 4: Simplify right side
    256,721.81x = 58,828,271,839.92
  5. Step 5: Solve for x
    x = 58,828,271,839.92/256,721.81
  6. Step 6: Final answer
    x = 229,151.83

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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.