Home / 291,742.40-437,613.60-165,771.20

Finding the Fourth Proportional to 291,742.40, 437,613.60 and 165,771.20

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Solution

The fourth proportional to 291,742.40, 437,613.60 and 165,771.20 is: 248,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,742.40 : 437,613.60 = 165,771.20 : x
  2. Step 2: Convert to fraction form
    291,742.40/437,613.60 = 165,771.20/x
  3. Step 3: Cross multiply
    291,742.40x = 437,613.60 × 165,771.20
  4. Step 4: Simplify right side
    291,742.40x = 72,543,731,608.32
  5. Step 5: Solve for x
    x = 72,543,731,608.32/291,742.40
  6. Step 6: Final answer
    x = 248,656.80

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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.