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Finding the Fourth Proportional to 404,676.90, 558,677.79 and 243,571.50

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Solution

The fourth proportional to 404,676.90, 558,677.79 and 243,571.50 is: 336,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,676.90 : 558,677.79 = 243,571.50 : x
  2. Step 2: Convert to fraction form
    404,676.90/558,677.79 = 243,571.50/x
  3. Step 3: Cross multiply
    404,676.90x = 558,677.79 × 243,571.50
  4. Step 4: Simplify right side
    404,676.90x = 136,077,987,326.99
  5. Step 5: Solve for x
    x = 136,077,987,326.99/404,676.90
  6. Step 6: Final answer
    x = 336,263.29

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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.