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Finding the Fourth Proportional to 375,392.75, 518,052.51 and 228,217.37

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Solution

The fourth proportional to 375,392.75, 518,052.51 and 228,217.37 is: 314,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,392.75 : 518,052.51 = 228,217.37 : x
  2. Step 2: Convert to fraction form
    375,392.75/518,052.51 = 228,217.37/x
  3. Step 3: Cross multiply
    375,392.75x = 518,052.51 × 228,217.37
  4. Step 4: Simplify right side
    375,392.75x = 118,228,578,763.84
  5. Step 5: Solve for x
    x = 118,228,578,763.84/375,392.75
  6. Step 6: Final answer
    x = 314,946.36

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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.