Home / 215,980.27-297,914-131,097.34

Finding the Fourth Proportional to 215,980.27, 297,914 and 131,097.34

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Solution

The fourth proportional to 215,980.27, 297,914 and 131,097.34 is: 180,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,980.27 : 297,914 = 131,097.34 : x
  2. Step 2: Convert to fraction form
    215,980.27/297,914 = 131,097.34/x
  3. Step 3: Cross multiply
    215,980.27x = 297,914 × 131,097.34
  4. Step 4: Simplify right side
    215,980.27x = 39,055,732,948.76
  5. Step 5: Solve for x
    x = 39,055,732,948.76/215,980.27
  6. Step 6: Final answer
    x = 180,830.10

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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.