Home / 398,255.73-549,590.04-216,967.61

Finding the Fourth Proportional to 398,255.73, 549,590.04 and 216,967.61

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Solution

The fourth proportional to 398,255.73, 549,590.04 and 216,967.61 is: 299,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,255.73 : 549,590.04 = 216,967.61 : x
  2. Step 2: Convert to fraction form
    398,255.73/549,590.04 = 216,967.61/x
  3. Step 3: Cross multiply
    398,255.73x = 549,590.04 × 216,967.61
  4. Step 4: Simplify right side
    398,255.73x = 119,243,234,710.65
  5. Step 5: Solve for x
    x = 119,243,234,710.65/398,255.73
  6. Step 6: Final answer
    x = 299,413.73

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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.