Home / 380,413.48-524,964.18-210,643.96

Finding the Fourth Proportional to 380,413.48, 524,964.18 and 210,643.96

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Solution

The fourth proportional to 380,413.48, 524,964.18 and 210,643.96 is: 290,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,413.48 : 524,964.18 = 210,643.96 : x
  2. Step 2: Convert to fraction form
    380,413.48/524,964.18 = 210,643.96/x
  3. Step 3: Cross multiply
    380,413.48x = 524,964.18 × 210,643.96
  4. Step 4: Simplify right side
    380,413.48x = 110,580,533,733.35
  5. Step 5: Solve for x
    x = 110,580,533,733.35/380,413.48
  6. Step 6: Final answer
    x = 290,685.11

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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.