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Finding the Fourth Proportional to 375,443.36, 518,108.64 and 203,361.60

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Solution

The fourth proportional to 375,443.36, 518,108.64 and 203,361.60 is: 280,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,443.36 : 518,108.64 = 203,361.60 : x
  2. Step 2: Convert to fraction form
    375,443.36/518,108.64 = 203,361.60/x
  3. Step 3: Cross multiply
    375,443.36x = 518,108.64 × 203,361.60
  4. Step 4: Simplify right side
    375,443.36x = 105,363,402,004.22
  5. Step 5: Solve for x
    x = 105,363,402,004.22/375,443.36
  6. Step 6: Final answer
    x = 280,637.28

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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.