Home / 228,621.20-315,507.24-128,017.04

Finding the Fourth Proportional to 228,621.20, 315,507.24 and 128,017.04

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Solution

The fourth proportional to 228,621.20, 315,507.24 and 128,017.04 is: 176,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,621.20 : 315,507.24 = 128,017.04 : x
  2. Step 2: Convert to fraction form
    228,621.20/315,507.24 = 128,017.04/x
  3. Step 3: Cross multiply
    228,621.20x = 315,507.24 × 128,017.04
  4. Step 4: Simplify right side
    228,621.20x = 40,390,302,963.37
  5. Step 5: Solve for x
    x = 40,390,302,963.37/228,621.20
  6. Step 6: Final answer
    x = 176,669.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.