Home / 292,629.66-439,129-115,113.60

Finding the Fourth Proportional to 292,629.66, 439,129 and 115,113.60

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Solution

The fourth proportional to 292,629.66, 439,129 and 115,113.60 is: 172,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,629.66 : 439,129 = 115,113.60 : x
  2. Step 2: Convert to fraction form
    292,629.66/439,129 = 115,113.60/x
  3. Step 3: Cross multiply
    292,629.66x = 439,129 × 115,113.60
  4. Step 4: Simplify right side
    292,629.66x = 50,549,720,054.40
  5. Step 5: Solve for x
    x = 50,549,720,054.40/292,629.66
  6. Step 6: Final answer
    x = 172,742.98

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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.