Home / 351,486.80-526,875.18-138,404.25

Finding the Fourth Proportional to 351,486.80, 526,875.18 and 138,404.25

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Solution

The fourth proportional to 351,486.80, 526,875.18 and 138,404.25 is: 207,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,486.80 : 526,875.18 = 138,404.25 : x
  2. Step 2: Convert to fraction form
    351,486.80/526,875.18 = 138,404.25/x
  3. Step 3: Cross multiply
    351,486.80x = 526,875.18 × 138,404.25
  4. Step 4: Simplify right side
    351,486.80x = 72,921,763,612.50
  5. Step 5: Solve for x
    x = 72,921,763,612.50/351,486.80
  6. Step 6: Final answer
    x = 207,466.58

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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.