Home / 315,847.73-435,871.04-172,607.81

Finding the Fourth Proportional to 315,847.73, 435,871.04 and 172,607.81

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Solution

The fourth proportional to 315,847.73, 435,871.04 and 172,607.81 is: 238,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,847.73 : 435,871.04 = 172,607.81 : x
  2. Step 2: Convert to fraction form
    315,847.73/435,871.04 = 172,607.81/x
  3. Step 3: Cross multiply
    315,847.73x = 435,871.04 × 172,607.81
  4. Step 4: Simplify right side
    315,847.73x = 75,234,742,614.43
  5. Step 5: Solve for x
    x = 75,234,742,614.43/315,847.73
  6. Step 6: Final answer
    x = 238,199.41

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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.