Home / 254,167.06-380,984.58-85,629.15

Finding the Fourth Proportional to 254,167.06, 380,984.58 and 85,629.15

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Solution

The fourth proportional to 254,167.06, 380,984.58 and 85,629.15 is: 128,354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,167.06 : 380,984.58 = 85,629.15 : x
  2. Step 2: Convert to fraction form
    254,167.06/380,984.58 = 85,629.15/x
  3. Step 3: Cross multiply
    254,167.06x = 380,984.58 × 85,629.15
  4. Step 4: Simplify right side
    254,167.06x = 32,623,385,748.51
  5. Step 5: Solve for x
    x = 32,623,385,748.51/254,167.06
  6. Step 6: Final answer
    x = 128,354.11

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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.