Home / 325,631.80-489,030.90-236,985.40

Finding the Fourth Proportional to 325,631.80, 489,030.90 and 236,985.40

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Solution

The fourth proportional to 325,631.80, 489,030.90 and 236,985.40 is: 355,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,631.80 : 489,030.90 = 236,985.40 : x
  2. Step 2: Convert to fraction form
    325,631.80/489,030.90 = 236,985.40/x
  3. Step 3: Cross multiply
    325,631.80x = 489,030.90 × 236,985.40
  4. Step 4: Simplify right side
    325,631.80x = 115,893,183,448.86
  5. Step 5: Solve for x
    x = 115,893,183,448.86/325,631.80
  6. Step 6: Final answer
    x = 355,902.54

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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.