Home / 314,015.20-434,482-273,812.80

Finding the Fourth Proportional to 314,015.20, 434,482 and 273,812.80

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Solution

The fourth proportional to 314,015.20, 434,482 and 273,812.80 is: 378,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,015.20 : 434,482 = 273,812.80 : x
  2. Step 2: Convert to fraction form
    314,015.20/434,482 = 273,812.80/x
  3. Step 3: Cross multiply
    314,015.20x = 434,482 × 273,812.80
  4. Step 4: Simplify right side
    314,015.20x = 118,966,732,969.60
  5. Step 5: Solve for x
    x = 118,966,732,969.60/314,015.20
  6. Step 6: Final answer
    x = 378,856.61

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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.