Home / 291,214.85-401,875.65-163,890.44

Finding the Fourth Proportional to 291,214.85, 401,875.65 and 163,890.44

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Solution

The fourth proportional to 291,214.85, 401,875.65 and 163,890.44 is: 226,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,214.85 : 401,875.65 = 163,890.44 : x
  2. Step 2: Convert to fraction form
    291,214.85/401,875.65 = 163,890.44/x
  3. Step 3: Cross multiply
    291,214.85x = 401,875.65 × 163,890.44
  4. Step 4: Simplify right side
    291,214.85x = 65,863,575,094.41
  5. Step 5: Solve for x
    x = 65,863,575,094.41/291,214.85
  6. Step 6: Final answer
    x = 226,168.33

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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.