Home / 216,421.47-298,635.86-119,619.38

Finding the Fourth Proportional to 216,421.47, 298,635.86 and 119,619.38

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Solution

The fourth proportional to 216,421.47, 298,635.86 and 119,619.38 is: 165,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,421.47 : 298,635.86 = 119,619.38 : x
  2. Step 2: Convert to fraction form
    216,421.47/298,635.86 = 119,619.38/x
  3. Step 3: Cross multiply
    216,421.47x = 298,635.86 × 119,619.38
  4. Step 4: Simplify right side
    216,421.47x = 35,722,637,464.60
  5. Step 5: Solve for x
    x = 35,722,637,464.60/216,421.47
  6. Step 6: Final answer
    x = 165,060.51

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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.