Home / 384,032.30-576,142.00-127,864.40

Finding the Fourth Proportional to 384,032.30, 576,142.00 and 127,864.40

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Solution

The fourth proportional to 384,032.30, 576,142.00 and 127,864.40 is: 191,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,032.30 : 576,142.00 = 127,864.40 : x
  2. Step 2: Convert to fraction form
    384,032.30/576,142.00 = 127,864.40/x
  3. Step 3: Cross multiply
    384,032.30x = 576,142.00 × 127,864.40
  4. Step 4: Simplify right side
    384,032.30x = 73,668,047,944.43
  5. Step 5: Solve for x
    x = 73,668,047,944.43/384,032.30
  6. Step 6: Final answer
    x = 191,827.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.