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Finding the Fourth Proportional to 230,978.40, 346,477.32 and 73,203.36

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Solution

The fourth proportional to 230,978.40, 346,477.32 and 73,203.36 is: 109,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,978.40 : 346,477.32 = 73,203.36 : x
  2. Step 2: Convert to fraction form
    230,978.40/346,477.32 = 73,203.36/x
  3. Step 3: Cross multiply
    230,978.40x = 346,477.32 × 73,203.36
  4. Step 4: Simplify right side
    230,978.40x = 25,363,303,987.80
  5. Step 5: Solve for x
    x = 25,363,303,987.80/230,978.40
  6. Step 6: Final answer
    x = 109,808.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.