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Finding the Fourth Proportional to 446,805, 616,590.90 and 255,881.56

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Solution

The fourth proportional to 446,805, 616,590.90 and 255,881.56 is: 353,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,805 : 616,590.90 = 255,881.56 : x
  2. Step 2: Convert to fraction form
    446,805/616,590.90 = 255,881.56/x
  3. Step 3: Cross multiply
    446,805x = 616,590.90 × 255,881.56
  4. Step 4: Simplify right side
    446,805x = 157,774,241,373.80
  5. Step 5: Solve for x
    x = 157,774,241,373.80/446,805
  6. Step 6: Final answer
    x = 353,116.55

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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.