Home / 403,136.20-604,121.10-178,312.60

Finding the Fourth Proportional to 403,136.20, 604,121.10 and 178,312.60

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Solution

The fourth proportional to 403,136.20, 604,121.10 and 178,312.60 is: 267,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,136.20 : 604,121.10 = 178,312.60 : x
  2. Step 2: Convert to fraction form
    403,136.20/604,121.10 = 178,312.60/x
  3. Step 3: Cross multiply
    403,136.20x = 604,121.10 × 178,312.60
  4. Step 4: Simplify right side
    403,136.20x = 107,722,404,055.86
  5. Step 5: Solve for x
    x = 107,722,404,055.86/403,136.20
  6. Step 6: Final answer
    x = 267,210.94

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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.