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Finding the Fourth Proportional to 370,676.64, 511,528.23 and 209,526.03

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Solution

The fourth proportional to 370,676.64, 511,528.23 and 209,526.03 is: 289,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,676.64 : 511,528.23 = 209,526.03 : x
  2. Step 2: Convert to fraction form
    370,676.64/511,528.23 = 209,526.03/x
  3. Step 3: Cross multiply
    370,676.64x = 511,528.23 × 209,526.03
  4. Step 4: Simplify right side
    370,676.64x = 107,178,479,264.83
  5. Step 5: Solve for x
    x = 107,178,479,264.83/370,676.64
  6. Step 6: Final answer
    x = 289,142.79

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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.