Home / 254,231.10-381,346.65-104,421.60

Finding the Fourth Proportional to 254,231.10, 381,346.65 and 104,421.60

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Solution

The fourth proportional to 254,231.10, 381,346.65 and 104,421.60 is: 156,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,231.10 : 381,346.65 = 104,421.60 : x
  2. Step 2: Convert to fraction form
    254,231.10/381,346.65 = 104,421.60/x
  3. Step 3: Cross multiply
    254,231.10x = 381,346.65 × 104,421.60
  4. Step 4: Simplify right side
    254,231.10x = 39,820,827,347.64
  5. Step 5: Solve for x
    x = 39,820,827,347.64/254,231.10
  6. Step 6: Final answer
    x = 156,632.40

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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.