Home / 257,030.43-385,562.04-79,522.57

Finding the Fourth Proportional to 257,030.43, 385,562.04 and 79,522.57

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Solution

The fourth proportional to 257,030.43, 385,562.04 and 79,522.57 is: 119,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,030.43 : 385,562.04 = 79,522.57 : x
  2. Step 2: Convert to fraction form
    257,030.43/385,562.04 = 79,522.57/x
  3. Step 3: Cross multiply
    257,030.43x = 385,562.04 × 79,522.57
  4. Step 4: Simplify right side
    257,030.43x = 30,660,884,315.24
  5. Step 5: Solve for x
    x = 30,660,884,315.24/257,030.43
  6. Step 6: Final answer
    x = 119,288.93

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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.