Home / 312,845.25-432,082.85-212,068.29

Finding the Fourth Proportional to 312,845.25, 432,082.85 and 212,068.29

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Solution

The fourth proportional to 312,845.25, 432,082.85 and 212,068.29 is: 292,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,845.25 : 432,082.85 = 212,068.29 : x
  2. Step 2: Convert to fraction form
    312,845.25/432,082.85 = 212,068.29/x
  3. Step 3: Cross multiply
    312,845.25x = 432,082.85 × 212,068.29
  4. Step 4: Simplify right side
    312,845.25x = 91,631,070,077.49
  5. Step 5: Solve for x
    x = 91,631,070,077.49/312,845.25
  6. Step 6: Final answer
    x = 292,895.83

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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.