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Finding the Fourth Proportional to 339,312.36, 468,454.68 and 212,160.72

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Solution

The fourth proportional to 339,312.36, 468,454.68 and 212,160.72 is: 292,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,312.36 : 468,454.68 = 212,160.72 : x
  2. Step 2: Convert to fraction form
    339,312.36/468,454.68 = 212,160.72/x
  3. Step 3: Cross multiply
    339,312.36x = 468,454.68 × 212,160.72
  4. Step 4: Simplify right side
    339,312.36x = 99,387,682,196.17
  5. Step 5: Solve for x
    x = 99,387,682,196.17/339,312.36
  6. Step 6: Final answer
    x = 292,909.11

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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.