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Finding the Fourth Proportional to 253,901.49, 380,290.67 and 103,686.26

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Solution

The fourth proportional to 253,901.49, 380,290.67 and 103,686.26 is: 155,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,901.49 : 380,290.67 = 103,686.26 : x
  2. Step 2: Convert to fraction form
    253,901.49/380,290.67 = 103,686.26/x
  3. Step 3: Cross multiply
    253,901.49x = 380,290.67 × 103,686.26
  4. Step 4: Simplify right side
    253,901.49x = 39,430,917,285.19
  5. Step 5: Solve for x
    x = 39,430,917,285.19/253,901.49
  6. Step 6: Final answer
    x = 155,300.06

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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.