Home / 291,971.90-437,919.98-92,312.44

Finding the Fourth Proportional to 291,971.90, 437,919.98 and 92,312.44

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Solution

The fourth proportional to 291,971.90, 437,919.98 and 92,312.44 is: 138,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,971.90 : 437,919.98 = 92,312.44 : x
  2. Step 2: Convert to fraction form
    291,971.90/437,919.98 = 92,312.44/x
  3. Step 3: Cross multiply
    291,971.90x = 437,919.98 × 92,312.44
  4. Step 4: Simplify right side
    291,971.90x = 40,425,461,878.55
  5. Step 5: Solve for x
    x = 40,425,461,878.55/291,971.90
  6. Step 6: Final answer
    x = 138,456.69

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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.