Home / 279,970.76-386,238.18-177,941.64

Finding the Fourth Proportional to 279,970.76, 386,238.18 and 177,941.64

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Solution

The fourth proportional to 279,970.76, 386,238.18 and 177,941.64 is: 245,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,970.76 : 386,238.18 = 177,941.64 : x
  2. Step 2: Convert to fraction form
    279,970.76/386,238.18 = 177,941.64/x
  3. Step 3: Cross multiply
    279,970.76x = 386,238.18 × 177,941.64
  4. Step 4: Simplify right side
    279,970.76x = 68,727,855,179.82
  5. Step 5: Solve for x
    x = 68,727,855,179.82/279,970.76
  6. Step 6: Final answer
    x = 245,482.26

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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.