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Finding the Fourth Proportional to 230,466.60, 345,699.91 and 72,707.36

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Solution

The fourth proportional to 230,466.60, 345,699.91 and 72,707.36 is: 109,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,466.60 : 345,699.91 = 72,707.36 : x
  2. Step 2: Convert to fraction form
    230,466.60/345,699.91 = 72,707.36/x
  3. Step 3: Cross multiply
    230,466.60x = 345,699.91 × 72,707.36
  4. Step 4: Simplify right side
    230,466.60x = 25,134,927,808.34
  5. Step 5: Solve for x
    x = 25,134,927,808.34/230,466.60
  6. Step 6: Final answer
    x = 109,061.04

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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.