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Finding the Fourth Proportional to 339,279.68, 468,331.68 and 291,340.64

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Solution

The fourth proportional to 339,279.68, 468,331.68 and 291,340.64 is: 402,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,279.68 : 468,331.68 = 291,340.64 : x
  2. Step 2: Convert to fraction form
    339,279.68/468,331.68 = 291,340.64/x
  3. Step 3: Cross multiply
    339,279.68x = 468,331.68 × 291,340.64
  4. Step 4: Simplify right side
    339,279.68x = 136,444,051,383.48
  5. Step 5: Solve for x
    x = 136,444,051,383.48/339,279.68
  6. Step 6: Final answer
    x = 402,158.04

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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.