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Finding the Fourth Proportional to 401,750.30, 554,413.89 and 220,465.28

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Solution

The fourth proportional to 401,750.30, 554,413.89 and 220,465.28 is: 304,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,750.30 : 554,413.89 = 220,465.28 : x
  2. Step 2: Convert to fraction form
    401,750.30/554,413.89 = 220,465.28/x
  3. Step 3: Cross multiply
    401,750.30x = 554,413.89 × 220,465.28
  4. Step 4: Simplify right side
    401,750.30x = 122,229,013,494.74
  5. Step 5: Solve for x
    x = 122,229,013,494.74/401,750.30
  6. Step 6: Final answer
    x = 304,241.25

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1.5x scale

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.