Home / 380,082.20-524,569.08-218,905.88

Finding the Fourth Proportional to 380,082.20, 524,569.08 and 218,905.88

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Solution

The fourth proportional to 380,082.20, 524,569.08 and 218,905.88 is: 302,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,082.20 : 524,569.08 = 218,905.88 : x
  2. Step 2: Convert to fraction form
    380,082.20/524,569.08 = 218,905.88/x
  3. Step 3: Cross multiply
    380,082.20x = 524,569.08 × 218,905.88
  4. Step 4: Simplify right side
    380,082.20x = 114,831,256,078.19
  5. Step 5: Solve for x
    x = 114,831,256,078.19/380,082.20
  6. Step 6: Final answer
    x = 302,122.16

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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.