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Finding the Fourth Proportional to 275,215.70, 379,800.79 and 152,710.29

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Solution

The fourth proportional to 275,215.70, 379,800.79 and 152,710.29 is: 210,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,215.70 : 379,800.79 = 152,710.29 : x
  2. Step 2: Convert to fraction form
    275,215.70/379,800.79 = 152,710.29/x
  3. Step 3: Cross multiply
    275,215.70x = 379,800.79 × 152,710.29
  4. Step 4: Simplify right side
    275,215.70x = 57,999,488,401.35
  5. Step 5: Solve for x
    x = 57,999,488,401.35/275,215.70
  6. Step 6: Final answer
    x = 210,741.93

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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.