Home / 380,788.13-525,545.52-243,026.50

Finding the Fourth Proportional to 380,788.13, 525,545.52 and 243,026.50

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Solution

The fourth proportional to 380,788.13, 525,545.52 and 243,026.50 is: 335,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,788.13 : 525,545.52 = 243,026.50 : x
  2. Step 2: Convert to fraction form
    380,788.13/525,545.52 = 243,026.50/x
  3. Step 3: Cross multiply
    380,788.13x = 525,545.52 × 243,026.50
  4. Step 4: Simplify right side
    380,788.13x = 127,721,484,473.42
  5. Step 5: Solve for x
    x = 127,721,484,473.42/380,788.13
  6. Step 6: Final answer
    x = 335,413.51

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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.