Home / 279,413.03-385,579.25-158,547.11

Finding the Fourth Proportional to 279,413.03, 385,579.25 and 158,547.11

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Solution

The fourth proportional to 279,413.03, 385,579.25 and 158,547.11 is: 218,788.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,413.03 : 385,579.25 = 158,547.11 : x
  2. Step 2: Convert to fraction form
    279,413.03/385,579.25 = 158,547.11/x
  3. Step 3: Cross multiply
    279,413.03x = 385,579.25 × 158,547.11
  4. Step 4: Simplify right side
    279,413.03x = 61,132,474,529.21
  5. Step 5: Solve for x
    x = 61,132,474,529.21/279,413.03
  6. Step 6: Final answer
    x = 218,788.92

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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.