Home / 251,221.10-376,886.99-139,064.90

Finding the Fourth Proportional to 251,221.10, 376,886.99 and 139,064.90

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Solution

The fourth proportional to 251,221.10, 376,886.99 and 139,064.90 is: 208,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,221.10 : 376,886.99 = 139,064.90 : x
  2. Step 2: Convert to fraction form
    251,221.10/376,886.99 = 139,064.90/x
  3. Step 3: Cross multiply
    251,221.10x = 376,886.99 × 139,064.90
  4. Step 4: Simplify right side
    251,221.10x = 52,411,750,038.88
  5. Step 5: Solve for x
    x = 52,411,750,038.88/251,221.10
  6. Step 6: Final answer
    x = 208,627.98

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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.