Home / 385,231.80-577,909.26-118,929.72

Finding the Fourth Proportional to 385,231.80, 577,909.26 and 118,929.72

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Solution

The fourth proportional to 385,231.80, 577,909.26 and 118,929.72 is: 178,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,231.80 : 577,909.26 = 118,929.72 : x
  2. Step 2: Convert to fraction form
    385,231.80/577,909.26 = 118,929.72/x
  3. Step 3: Cross multiply
    385,231.80x = 577,909.26 × 118,929.72
  4. Step 4: Simplify right side
    385,231.80x = 68,730,586,477.21
  5. Step 5: Solve for x
    x = 68,730,586,477.21/385,231.80
  6. Step 6: Final answer
    x = 178,413.58

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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.