Home / 376,413.45-519,416.04-223,425.51

Finding the Fourth Proportional to 376,413.45, 519,416.04 and 223,425.51

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Solution

The fourth proportional to 376,413.45, 519,416.04 and 223,425.51 is: 308,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,413.45 : 519,416.04 = 223,425.51 : x
  2. Step 2: Convert to fraction form
    376,413.45/519,416.04 = 223,425.51/x
  3. Step 3: Cross multiply
    376,413.45x = 519,416.04 × 223,425.51
  4. Step 4: Simplify right side
    376,413.45x = 116,050,793,639.18
  5. Step 5: Solve for x
    x = 116,050,793,639.18/376,413.45
  6. Step 6: Final answer
    x = 308,306.71

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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.