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Finding the Fourth Proportional to 228,568.52, 315,457.62 and 127,973

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Solution

The fourth proportional to 228,568.52, 315,457.62 and 127,973 is: 176,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,568.52 : 315,457.62 = 127,973 : x
  2. Step 2: Convert to fraction form
    228,568.52/315,457.62 = 127,973/x
  3. Step 3: Cross multiply
    228,568.52x = 315,457.62 × 127,973
  4. Step 4: Simplify right side
    228,568.52x = 40,370,058,004.26
  5. Step 5: Solve for x
    x = 40,370,058,004.26/228,568.52
  6. Step 6: Final answer
    x = 176,621.25

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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.