Home / 385,263.60-577,897.20-135,945.60

Finding the Fourth Proportional to 385,263.60, 577,897.20 and 135,945.60

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Solution

The fourth proportional to 385,263.60, 577,897.20 and 135,945.60 is: 203,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,263.60 : 577,897.20 = 135,945.60 : x
  2. Step 2: Convert to fraction form
    385,263.60/577,897.20 = 135,945.60/x
  3. Step 3: Cross multiply
    385,263.60x = 577,897.20 × 135,945.60
  4. Step 4: Simplify right side
    385,263.60x = 78,562,581,592.32
  5. Step 5: Solve for x
    x = 78,562,581,592.32/385,263.60
  6. Step 6: Final answer
    x = 203,919.04

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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.