Home / 321,400.04-443,485.41-178,160.06

Finding the Fourth Proportional to 321,400.04, 443,485.41 and 178,160.06

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Solution

The fourth proportional to 321,400.04, 443,485.41 and 178,160.06 is: 245,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,400.04 : 443,485.41 = 178,160.06 : x
  2. Step 2: Convert to fraction form
    321,400.04/443,485.41 = 178,160.06/x
  3. Step 3: Cross multiply
    321,400.04x = 443,485.41 × 178,160.06
  4. Step 4: Simplify right side
    321,400.04x = 79,011,387,254.72
  5. Step 5: Solve for x
    x = 79,011,387,254.72/321,400.04
  6. Step 6: Final answer
    x = 245,835.03

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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.