Home / 215,858.51-323,897.10-145,590.20

Finding the Fourth Proportional to 215,858.51, 323,897.10 and 145,590.20

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Solution

The fourth proportional to 215,858.51, 323,897.10 and 145,590.20 is: 218,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,858.51 : 323,897.10 = 145,590.20 : x
  2. Step 2: Convert to fraction form
    215,858.51/323,897.10 = 145,590.20/x
  3. Step 3: Cross multiply
    215,858.51x = 323,897.10 × 145,590.20
  4. Step 4: Simplify right side
    215,858.51x = 47,156,241,948.93
  5. Step 5: Solve for x
    x = 47,156,241,948.93/215,858.51
  6. Step 6: Final answer
    x = 218,459.04

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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.