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Finding the Fourth Proportional to 303,665.55, 455,774.79 and 161,630.13

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Solution

The fourth proportional to 303,665.55, 455,774.79 and 161,630.13 is: 242,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,665.55 : 455,774.79 = 161,630.13 : x
  2. Step 2: Convert to fraction form
    303,665.55/455,774.79 = 161,630.13/x
  3. Step 3: Cross multiply
    303,665.55x = 455,774.79 × 161,630.13
  4. Step 4: Simplify right side
    303,665.55x = 73,666,938,558.42
  5. Step 5: Solve for x
    x = 73,666,938,558.42/303,665.55
  6. Step 6: Final answer
    x = 242,592.35

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1.5x scale

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.