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Finding the Fourth Proportional to 250,430.94, 345,393.64 and 220,152.06

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Solution

The fourth proportional to 250,430.94, 345,393.64 and 220,152.06 is: 303,633.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,430.94 : 345,393.64 = 220,152.06 : x
  2. Step 2: Convert to fraction form
    250,430.94/345,393.64 = 220,152.06/x
  3. Step 3: Cross multiply
    250,430.94x = 345,393.64 × 220,152.06
  4. Step 4: Simplify right side
    250,430.94x = 76,039,121,356.90
  5. Step 5: Solve for x
    x = 76,039,121,356.90/250,430.94
  6. Step 6: Final answer
    x = 303,633.09

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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.