Home / 323,623.89-485,438.27-98,988.35

Finding the Fourth Proportional to 323,623.89, 485,438.27 and 98,988.35

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Solution

The fourth proportional to 323,623.89, 485,438.27 and 98,988.35 is: 148,483.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,623.89 : 485,438.27 = 98,988.35 : x
  2. Step 2: Convert to fraction form
    323,623.89/485,438.27 = 98,988.35/x
  3. Step 3: Cross multiply
    323,623.89x = 485,438.27 × 98,988.35
  4. Step 4: Simplify right side
    323,623.89x = 48,052,730,452.02
  5. Step 5: Solve for x
    x = 48,052,730,452.02/323,623.89
  6. Step 6: Final answer
    x = 148,483.26

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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.