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Finding the Fourth Proportional to 368,885.04, 507,989.37 and 320,464.86

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Solution

The fourth proportional to 368,885.04, 507,989.37 and 320,464.86 is: 441,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,885.04 : 507,989.37 = 320,464.86 : x
  2. Step 2: Convert to fraction form
    368,885.04/507,989.37 = 320,464.86/x
  3. Step 3: Cross multiply
    368,885.04x = 507,989.37 × 320,464.86
  4. Step 4: Simplify right side
    368,885.04x = 162,792,742,338.54
  5. Step 5: Solve for x
    x = 162,792,742,338.54/368,885.04
  6. Step 6: Final answer
    x = 441,310.23

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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.