Home / 505,421.17-757,757.23-238,870.29

Finding the Fourth Proportional to 505,421.17, 757,757.23 and 238,870.29

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Solution

The fourth proportional to 505,421.17, 757,757.23 and 238,870.29 is: 358,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,421.17 : 757,757.23 = 238,870.29 : x
  2. Step 2: Convert to fraction form
    505,421.17/757,757.23 = 238,870.29/x
  3. Step 3: Cross multiply
    505,421.17x = 757,757.23 × 238,870.29
  4. Step 4: Simplify right side
    505,421.17x = 181,005,689,392.92
  5. Step 5: Solve for x
    x = 181,005,689,392.92/505,421.17
  6. Step 6: Final answer
    x = 358,128.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.