Home / 272,200.08-408,383.04-139,173.72

Finding the Fourth Proportional to 272,200.08, 408,383.04 and 139,173.72

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Solution

The fourth proportional to 272,200.08, 408,383.04 and 139,173.72 is: 208,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,200.08 : 408,383.04 = 139,173.72 : x
  2. Step 2: Convert to fraction form
    272,200.08/408,383.04 = 139,173.72/x
  3. Step 3: Cross multiply
    272,200.08x = 408,383.04 × 139,173.72
  4. Step 4: Simplify right side
    272,200.08x = 56,836,186,861.71
  5. Step 5: Solve for x
    x = 56,836,186,861.71/272,200.08
  6. Step 6: Final answer
    x = 208,802.98

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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.