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Finding the Fourth Proportional to 294,006.90, 441,010.35 and 128,118.90

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Solution

The fourth proportional to 294,006.90, 441,010.35 and 128,118.90 is: 192,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,006.90 : 441,010.35 = 128,118.90 : x
  2. Step 2: Convert to fraction form
    294,006.90/441,010.35 = 128,118.90/x
  3. Step 3: Cross multiply
    294,006.90x = 441,010.35 × 128,118.90
  4. Step 4: Simplify right side
    294,006.90x = 56,501,760,930.62
  5. Step 5: Solve for x
    x = 56,501,760,930.62/294,006.90
  6. Step 6: Final answer
    x = 192,178.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.