Home / 385,259.10-577,890.45-135,941.10

Finding the Fourth Proportional to 385,259.10, 577,890.45 and 135,941.10

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Solution

The fourth proportional to 385,259.10, 577,890.45 and 135,941.10 is: 203,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,259.10 : 577,890.45 = 135,941.10 : x
  2. Step 2: Convert to fraction form
    385,259.10/577,890.45 = 135,941.10/x
  3. Step 3: Cross multiply
    385,259.10x = 577,890.45 × 135,941.10
  4. Step 4: Simplify right side
    385,259.10x = 78,559,063,452.50
  5. Step 5: Solve for x
    x = 78,559,063,452.50/385,259.10
  6. Step 6: Final answer
    x = 203,912.29

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1.5x scale

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.