Home / 211,856.71-292,413.18-121,265.20

Finding the Fourth Proportional to 211,856.71, 292,413.18 and 121,265.20

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Solution

The fourth proportional to 211,856.71, 292,413.18 and 121,265.20 is: 167,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,856.71 : 292,413.18 = 121,265.20 : x
  2. Step 2: Convert to fraction form
    211,856.71/292,413.18 = 121,265.20/x
  3. Step 3: Cross multiply
    211,856.71x = 292,413.18 × 121,265.20
  4. Step 4: Simplify right side
    211,856.71x = 35,459,540,686.94
  5. Step 5: Solve for x
    x = 35,459,540,686.94/211,856.71
  6. Step 6: Final answer
    x = 167,375.11

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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.