Home / 216,262.02-298,429.22-129,145.44

Finding the Fourth Proportional to 216,262.02, 298,429.22 and 129,145.44

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Solution

The fourth proportional to 216,262.02, 298,429.22 and 129,145.44 is: 178,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,262.02 : 298,429.22 = 129,145.44 : x
  2. Step 2: Convert to fraction form
    216,262.02/298,429.22 = 129,145.44/x
  3. Step 3: Cross multiply
    216,262.02x = 298,429.22 × 129,145.44
  4. Step 4: Simplify right side
    216,262.02x = 38,540,772,925.76
  5. Step 5: Solve for x
    x = 38,540,772,925.76/216,262.02
  6. Step 6: Final answer
    x = 178,213.32

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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.