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Finding the Fourth Proportional to 446,828.40, 616,636.80 and 255,830.40

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Solution

The fourth proportional to 446,828.40, 616,636.80 and 255,830.40 is: 353,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,828.40 : 616,636.80 = 255,830.40 : x
  2. Step 2: Convert to fraction form
    446,828.40/616,636.80 = 255,830.40/x
  3. Step 3: Cross multiply
    446,828.40x = 616,636.80 × 255,830.40
  4. Step 4: Simplify right side
    446,828.40x = 157,754,439,198.72
  5. Step 5: Solve for x
    x = 157,754,439,198.72/446,828.40
  6. Step 6: Final answer
    x = 353,053.74

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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.