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Finding the Fourth Proportional to 375,389.04, 518,032.80 and 203,304.18

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Solution

The fourth proportional to 375,389.04, 518,032.80 and 203,304.18 is: 280,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,389.04 : 518,032.80 = 203,304.18 : x
  2. Step 2: Convert to fraction form
    375,389.04/518,032.80 = 203,304.18/x
  3. Step 3: Cross multiply
    375,389.04x = 518,032.80 × 203,304.18
  4. Step 4: Simplify right side
    375,389.04x = 105,318,233,617.10
  5. Step 5: Solve for x
    x = 105,318,233,617.10/375,389.04
  6. Step 6: Final answer
    x = 280,557.56

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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.