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Finding the Fourth Proportional to 323,466.36, 485,001.90 and 155,038.20

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Solution

The fourth proportional to 323,466.36, 485,001.90 and 155,038.20 is: 232,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,466.36 : 485,001.90 = 155,038.20 : x
  2. Step 2: Convert to fraction form
    323,466.36/485,001.90 = 155,038.20/x
  3. Step 3: Cross multiply
    323,466.36x = 485,001.90 × 155,038.20
  4. Step 4: Simplify right side
    323,466.36x = 75,193,821,572.58
  5. Step 5: Solve for x
    x = 75,193,821,572.58/323,466.36
  6. Step 6: Final answer
    x = 232,462.57

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1.5x scale

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.