Home / 376,070.79-518,974.66-203,988.32

Finding the Fourth Proportional to 376,070.79, 518,974.66 and 203,988.32

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Solution

The fourth proportional to 376,070.79, 518,974.66 and 203,988.32 is: 281,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,070.79 : 518,974.66 = 203,988.32 : x
  2. Step 2: Convert to fraction form
    376,070.79/518,974.66 = 203,988.32/x
  3. Step 3: Cross multiply
    376,070.79x = 518,974.66 × 203,988.32
  4. Step 4: Simplify right side
    376,070.79x = 105,864,767,996.03
  5. Step 5: Solve for x
    x = 105,864,767,996.03/376,070.79
  6. Step 6: Final answer
    x = 281,502.24

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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.