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Finding the Fourth Proportional to 245,354.94, 368,031.96 and 76,888.17

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Solution

The fourth proportional to 245,354.94, 368,031.96 and 76,888.17 is: 115,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,354.94 : 368,031.96 = 76,888.17 : x
  2. Step 2: Convert to fraction form
    245,354.94/368,031.96 = 76,888.17/x
  3. Step 3: Cross multiply
    245,354.94x = 368,031.96 × 76,888.17
  4. Step 4: Simplify right side
    245,354.94x = 28,297,303,905.91
  5. Step 5: Solve for x
    x = 28,297,303,905.91/245,354.94
  6. Step 6: Final answer
    x = 115,332.11

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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.