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Finding the Fourth Proportional to 545,104.31, 752,236.34 and 303,386.94

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Solution

The fourth proportional to 545,104.31, 752,236.34 and 303,386.94 is: 418,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,104.31 : 752,236.34 = 303,386.94 : x
  2. Step 2: Convert to fraction form
    545,104.31/752,236.34 = 303,386.94/x
  3. Step 3: Cross multiply
    545,104.31x = 752,236.34 × 303,386.94
  4. Step 4: Simplify right side
    545,104.31x = 228,218,679,832.47
  5. Step 5: Solve for x
    x = 228,218,679,832.47/545,104.31
  6. Step 6: Final answer
    x = 418,669.74

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Double scale
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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.