Home / 215,855.51-323,892.60-145,587.20

Finding the Fourth Proportional to 215,855.51, 323,892.60 and 145,587.20

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Solution

The fourth proportional to 215,855.51, 323,892.60 and 145,587.20 is: 218,454.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,855.51 : 323,892.60 = 145,587.20 : x
  2. Step 2: Convert to fraction form
    215,855.51/323,892.60 = 145,587.20/x
  3. Step 3: Cross multiply
    215,855.51x = 323,892.60 × 145,587.20
  4. Step 4: Simplify right side
    215,855.51x = 47,154,615,115.26
  5. Step 5: Solve for x
    x = 47,154,615,115.26/215,855.51
  6. Step 6: Final answer
    x = 218,454.54

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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.