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Finding the Fourth Proportional to 215,307.60, 297,120.48 and 119,813.40

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Solution

The fourth proportional to 215,307.60, 297,120.48 and 119,813.40 is: 165,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,307.60 : 297,120.48 = 119,813.40 : x
  2. Step 2: Convert to fraction form
    215,307.60/297,120.48 = 119,813.40/x
  3. Step 3: Cross multiply
    215,307.60x = 297,120.48 × 119,813.40
  4. Step 4: Simplify right side
    215,307.60x = 35,599,014,918.43
  5. Step 5: Solve for x
    x = 35,599,014,918.43/215,307.60
  6. Step 6: Final answer
    x = 165,340.26

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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.