Home / 515,423.51-773,246.30-155,564.23

Finding the Fourth Proportional to 515,423.51, 773,246.30 and 155,564.23

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Solution

The fourth proportional to 515,423.51, 773,246.30 and 155,564.23 is: 233,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,423.51 : 773,246.30 = 155,564.23 : x
  2. Step 2: Convert to fraction form
    515,423.51/773,246.30 = 155,564.23/x
  3. Step 3: Cross multiply
    515,423.51x = 773,246.30 × 155,564.23
  4. Step 4: Simplify right side
    515,423.51x = 120,289,465,259.85
  5. Step 5: Solve for x
    x = 120,289,465,259.85/515,423.51
  6. Step 6: Final answer
    x = 233,379.86

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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.