Home / 216,639.41-298,956.79-119,840.74

Finding the Fourth Proportional to 216,639.41, 298,956.79 and 119,840.74

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Solution

The fourth proportional to 216,639.41, 298,956.79 and 119,840.74 is: 165,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,639.41 : 298,956.79 = 119,840.74 : x
  2. Step 2: Convert to fraction form
    216,639.41/298,956.79 = 119,840.74/x
  3. Step 3: Cross multiply
    216,639.41x = 298,956.79 × 119,840.74
  4. Step 4: Simplify right side
    216,639.41x = 35,827,202,941.62
  5. Step 5: Solve for x
    x = 35,827,202,941.62/216,639.41
  6. Step 6: Final answer
    x = 165,377.13

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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.