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Finding the Fourth Proportional to 303,373, 418,738 and 176,089.60

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Solution

The fourth proportional to 303,373, 418,738 and 176,089.60 is: 243,051.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,373 : 418,738 = 176,089.60 : x
  2. Step 2: Convert to fraction form
    303,373/418,738 = 176,089.60/x
  3. Step 3: Cross multiply
    303,373x = 418,738 × 176,089.60
  4. Step 4: Simplify right side
    303,373x = 73,735,406,924.80
  5. Step 5: Solve for x
    x = 73,735,406,924.80/303,373
  6. Step 6: Final answer
    x = 243,051.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.