Home / 321,027.20-481,617.60-154,678.40

Finding the Fourth Proportional to 321,027.20, 481,617.60 and 154,678.40

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Solution

The fourth proportional to 321,027.20, 481,617.60 and 154,678.40 is: 232,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,027.20 : 481,617.60 = 154,678.40 : x
  2. Step 2: Convert to fraction form
    321,027.20/481,617.60 = 154,678.40/x
  3. Step 3: Cross multiply
    321,027.20x = 481,617.60 × 154,678.40
  4. Step 4: Simplify right side
    321,027.20x = 74,495,839,779.84
  5. Step 5: Solve for x
    x = 74,495,839,779.84/321,027.20
  6. Step 6: Final answer
    x = 232,054.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.