Home / 385,020.08-577,628.52-148,299.20

Finding the Fourth Proportional to 385,020.08, 577,628.52 and 148,299.20

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Solution

The fourth proportional to 385,020.08, 577,628.52 and 148,299.20 is: 222,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,020.08 : 577,628.52 = 148,299.20 : x
  2. Step 2: Convert to fraction form
    385,020.08/577,628.52 = 148,299.20/x
  3. Step 3: Cross multiply
    385,020.08x = 577,628.52 × 148,299.20
  4. Step 4: Simplify right side
    385,020.08x = 85,661,847,413.18
  5. Step 5: Solve for x
    x = 85,661,847,413.18/385,020.08
  6. Step 6: Final answer
    x = 222,486.70

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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.