Home / 279,435.04-384,885.74-214,780.64

Finding the Fourth Proportional to 279,435.04, 384,885.74 and 214,780.64

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Solution

The fourth proportional to 279,435.04, 384,885.74 and 214,780.64 is: 295,832.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,435.04 : 384,885.74 = 214,780.64 : x
  2. Step 2: Convert to fraction form
    279,435.04/384,885.74 = 214,780.64/x
  3. Step 3: Cross multiply
    279,435.04x = 384,885.74 × 214,780.64
  4. Step 4: Simplify right side
    279,435.04x = 82,666,004,176.60
  5. Step 5: Solve for x
    x = 82,666,004,176.60/279,435.04
  6. Step 6: Final answer
    x = 295,832.64

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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.