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Finding the Fourth Proportional to 228,276.94, 315,020.47 and 127,674.94

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Solution

The fourth proportional to 228,276.94, 315,020.47 and 127,674.94 is: 176,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,276.94 : 315,020.47 = 127,674.94 : x
  2. Step 2: Convert to fraction form
    228,276.94/315,020.47 = 127,674.94/x
  3. Step 3: Cross multiply
    228,276.94x = 315,020.47 × 127,674.94
  4. Step 4: Simplify right side
    228,276.94x = 40,220,219,606.02
  5. Step 5: Solve for x
    x = 40,220,219,606.02/228,276.94
  6. Step 6: Final answer
    x = 176,190.46

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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.