Home / 209,663.40-314,495.10-186,918.60

Finding the Fourth Proportional to 209,663.40, 314,495.10 and 186,918.60

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Solution

The fourth proportional to 209,663.40, 314,495.10 and 186,918.60 is: 280,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,663.40 : 314,495.10 = 186,918.60 : x
  2. Step 2: Convert to fraction form
    209,663.40/314,495.10 = 186,918.60/x
  3. Step 3: Cross multiply
    209,663.40x = 314,495.10 × 186,918.60
  4. Step 4: Simplify right side
    209,663.40x = 58,784,983,798.86
  5. Step 5: Solve for x
    x = 58,784,983,798.86/209,663.40
  6. Step 6: Final answer
    x = 280,377.90

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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.