Home / 291,193.96-401,781-163,823.08

Finding the Fourth Proportional to 291,193.96, 401,781 and 163,823.08

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Solution

The fourth proportional to 291,193.96, 401,781 and 163,823.08 is: 226,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,193.96 : 401,781 = 163,823.08 : x
  2. Step 2: Convert to fraction form
    291,193.96/401,781 = 163,823.08/x
  3. Step 3: Cross multiply
    291,193.96x = 401,781 × 163,823.08
  4. Step 4: Simplify right side
    291,193.96x = 65,821,000,905.48
  5. Step 5: Solve for x
    x = 65,821,000,905.48/291,193.96
  6. Step 6: Final answer
    x = 226,038.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.