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Finding the Fourth Proportional to 305,053.98, 457,580.97 and 105,379.26

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Solution

The fourth proportional to 305,053.98, 457,580.97 and 105,379.26 is: 158,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,053.98 : 457,580.97 = 105,379.26 : x
  2. Step 2: Convert to fraction form
    305,053.98/457,580.97 = 105,379.26/x
  3. Step 3: Cross multiply
    305,053.98x = 457,580.97 × 105,379.26
  4. Step 4: Simplify right side
    305,053.98x = 48,219,544,008.68
  5. Step 5: Solve for x
    x = 48,219,544,008.68/305,053.98
  6. Step 6: Final answer
    x = 158,068.89

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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.