Home / 389,055.18-536,900.22-219,289.30

Finding the Fourth Proportional to 389,055.18, 536,900.22 and 219,289.30

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Solution

The fourth proportional to 389,055.18, 536,900.22 and 219,289.30 is: 302,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,055.18 : 536,900.22 = 219,289.30 : x
  2. Step 2: Convert to fraction form
    389,055.18/536,900.22 = 219,289.30/x
  3. Step 3: Cross multiply
    389,055.18x = 536,900.22 × 219,289.30
  4. Step 4: Simplify right side
    389,055.18x = 117,736,473,413.65
  5. Step 5: Solve for x
    x = 117,736,473,413.65/389,055.18
  6. Step 6: Final answer
    x = 302,621.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.