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Finding the Fourth Proportional to 384,095.40, 576,315.90 and 134,956.20

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Solution

The fourth proportional to 384,095.40, 576,315.90 and 134,956.20 is: 202,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,095.40 : 576,315.90 = 134,956.20 : x
  2. Step 2: Convert to fraction form
    384,095.40/576,315.90 = 134,956.20/x
  3. Step 3: Cross multiply
    384,095.40x = 576,315.90 × 134,956.20
  4. Step 4: Simplify right side
    384,095.40x = 77,777,403,863.58
  5. Step 5: Solve for x
    x = 77,777,403,863.58/384,095.40
  6. Step 6: Final answer
    x = 202,495.02

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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.