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Finding the Fourth Proportional to 245,640.60, 368,460.90 and 242,530.20

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Solution

The fourth proportional to 245,640.60, 368,460.90 and 242,530.20 is: 363,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,640.60 : 368,460.90 = 242,530.20 : x
  2. Step 2: Convert to fraction form
    245,640.60/368,460.90 = 242,530.20/x
  3. Step 3: Cross multiply
    245,640.60x = 368,460.90 × 242,530.20
  4. Step 4: Simplify right side
    245,640.60x = 89,362,895,769.18
  5. Step 5: Solve for x
    x = 89,362,895,769.18/245,640.60
  6. Step 6: Final answer
    x = 363,795.30

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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.