Home / 286,480.20-429,785.10-168,090.60

Finding the Fourth Proportional to 286,480.20, 429,785.10 and 168,090.60

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Solution

The fourth proportional to 286,480.20, 429,785.10 and 168,090.60 is: 252,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,480.20 : 429,785.10 = 168,090.60 : x
  2. Step 2: Convert to fraction form
    286,480.20/429,785.10 = 168,090.60/x
  3. Step 3: Cross multiply
    286,480.20x = 429,785.10 × 168,090.60
  4. Step 4: Simplify right side
    286,480.20x = 72,242,835,330.06
  5. Step 5: Solve for x
    x = 72,242,835,330.06/286,480.20
  6. Step 6: Final answer
    x = 252,173.92

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1.5x scale

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.