Home / 272,906.10-409,359.15-243,381.60

Finding the Fourth Proportional to 272,906.10, 409,359.15 and 243,381.60

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Solution

The fourth proportional to 272,906.10, 409,359.15 and 243,381.60 is: 365,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,906.10 : 409,359.15 = 243,381.60 : x
  2. Step 2: Convert to fraction form
    272,906.10/409,359.15 = 243,381.60/x
  3. Step 3: Cross multiply
    272,906.10x = 409,359.15 × 243,381.60
  4. Step 4: Simplify right side
    272,906.10x = 99,630,484,901.64
  5. Step 5: Solve for x
    x = 99,630,484,901.64/272,906.10
  6. Step 6: Final answer
    x = 365,072.40

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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.