Home / 215,421.96-297,272.70-123,475.32

Finding the Fourth Proportional to 215,421.96, 297,272.70 and 123,475.32

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Solution

The fourth proportional to 215,421.96, 297,272.70 and 123,475.32 is: 170,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,421.96 : 297,272.70 = 123,475.32 : x
  2. Step 2: Convert to fraction form
    215,421.96/297,272.70 = 123,475.32/x
  3. Step 3: Cross multiply
    215,421.96x = 297,272.70 × 123,475.32
  4. Step 4: Simplify right side
    215,421.96x = 36,705,841,759.76
  5. Step 5: Solve for x
    x = 36,705,841,759.76/215,421.96
  6. Step 6: Final answer
    x = 170,390.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.