Home / 216,455.02-298,702.75-120,980.17

Finding the Fourth Proportional to 216,455.02, 298,702.75 and 120,980.17

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Solution

The fourth proportional to 216,455.02, 298,702.75 and 120,980.17 is: 166,949.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,455.02 : 298,702.75 = 120,980.17 : x
  2. Step 2: Convert to fraction form
    216,455.02/298,702.75 = 120,980.17/x
  3. Step 3: Cross multiply
    216,455.02x = 298,702.75 × 120,980.17
  4. Step 4: Simplify right side
    216,455.02x = 36,137,108,425.26
  5. Step 5: Solve for x
    x = 36,137,108,425.26/216,455.02
  6. Step 6: Final answer
    x = 166,949.74

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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.