Home / 354,341.03-489,189.61-245,603.39

Finding the Fourth Proportional to 354,341.03, 489,189.61 and 245,603.39

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Solution

The fourth proportional to 354,341.03, 489,189.61 and 245,603.39 is: 339,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,341.03 : 489,189.61 = 245,603.39 : x
  2. Step 2: Convert to fraction form
    354,341.03/489,189.61 = 245,603.39/x
  3. Step 3: Cross multiply
    354,341.03x = 489,189.61 × 245,603.39
  4. Step 4: Simplify right side
    354,341.03x = 120,146,627,791.75
  5. Step 5: Solve for x
    x = 120,146,627,791.75/354,341.03
  6. Step 6: Final answer
    x = 339,070.60

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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.