Home / 351,686.20-526,751.70-272,176.60

Finding the Fourth Proportional to 351,686.20, 526,751.70 and 272,176.60

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Solution

The fourth proportional to 351,686.20, 526,751.70 and 272,176.60 is: 407,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,686.20 : 526,751.70 = 272,176.60 : x
  2. Step 2: Convert to fraction form
    351,686.20/526,751.70 = 272,176.60/x
  3. Step 3: Cross multiply
    351,686.20x = 526,751.70 × 272,176.60
  4. Step 4: Simplify right side
    351,686.20x = 143,369,486,750.22
  5. Step 5: Solve for x
    x = 143,369,486,750.22/351,686.20
  6. Step 6: Final answer
    x = 407,663.10

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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.