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Finding the Fourth Proportional to 155,429.88, 214,473.94 and 98,047.45

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Solution

The fourth proportional to 155,429.88, 214,473.94 and 98,047.45 is: 135,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,429.88 : 214,473.94 = 98,047.45 : x
  2. Step 2: Convert to fraction form
    155,429.88/214,473.94 = 98,047.45/x
  3. Step 3: Cross multiply
    155,429.88x = 214,473.94 × 98,047.45
  4. Step 4: Simplify right side
    155,429.88x = 21,028,622,931.43
  5. Step 5: Solve for x
    x = 21,028,622,931.43/155,429.88
  6. Step 6: Final answer
    x = 135,293.31

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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.