Home / 181,480.20-272,184.78-172,478.64

Finding the Fourth Proportional to 181,480.20, 272,184.78 and 172,478.64

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Solution

The fourth proportional to 181,480.20, 272,184.78 and 172,478.64 is: 258,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,480.20 : 272,184.78 = 172,478.64 : x
  2. Step 2: Convert to fraction form
    181,480.20/272,184.78 = 172,478.64/x
  3. Step 3: Cross multiply
    181,480.20x = 272,184.78 × 172,478.64
  4. Step 4: Simplify right side
    181,480.20x = 46,946,060,683.10
  5. Step 5: Solve for x
    x = 46,946,060,683.10/181,480.20
  6. Step 6: Final answer
    x = 258,684.20

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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.