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Finding the Fourth Proportional to 215,379.54, 297,225.45 and 130,437.54

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Solution

The fourth proportional to 215,379.54, 297,225.45 and 130,437.54 is: 180,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,379.54 : 297,225.45 = 130,437.54 : x
  2. Step 2: Convert to fraction form
    215,379.54/297,225.45 = 130,437.54/x
  3. Step 3: Cross multiply
    215,379.54x = 297,225.45 × 130,437.54
  4. Step 4: Simplify right side
    215,379.54x = 38,769,356,523.39
  5. Step 5: Solve for x
    x = 38,769,356,523.39/215,379.54
  6. Step 6: Final answer
    x = 180,004.83

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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.