Home / 216,290.55-298,451.48-120,785.07

Finding the Fourth Proportional to 216,290.55, 298,451.48 and 120,785.07

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Solution

The fourth proportional to 216,290.55, 298,451.48 and 120,785.07 is: 166,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,290.55 : 298,451.48 = 120,785.07 : x
  2. Step 2: Convert to fraction form
    216,290.55/298,451.48 = 120,785.07/x
  3. Step 3: Cross multiply
    216,290.55x = 298,451.48 × 120,785.07
  4. Step 4: Simplify right side
    216,290.55x = 36,048,482,299.48
  5. Step 5: Solve for x
    x = 36,048,482,299.48/216,290.55
  6. Step 6: Final answer
    x = 166,666.93

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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.