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Finding the Fourth Proportional to 245,216, 365,678.12 and 242,973.90

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Solution

The fourth proportional to 245,216, 365,678.12 and 242,973.90 is: 362,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,216 : 365,678.12 = 242,973.90 : x
  2. Step 2: Convert to fraction form
    245,216/365,678.12 = 242,973.90/x
  3. Step 3: Cross multiply
    245,216x = 365,678.12 × 242,973.90
  4. Step 4: Simplify right side
    245,216x = 88,850,238,961.07
  5. Step 5: Solve for x
    x = 88,850,238,961.07/245,216
  6. Step 6: Final answer
    x = 362,334.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.