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Finding the Fourth Proportional to 303,776.81, 418,898.03 and 260,898.28

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Solution

The fourth proportional to 303,776.81, 418,898.03 and 260,898.28 is: 359,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,776.81 : 418,898.03 = 260,898.28 : x
  2. Step 2: Convert to fraction form
    303,776.81/418,898.03 = 260,898.28/x
  3. Step 3: Cross multiply
    303,776.81x = 418,898.03 × 260,898.28
  4. Step 4: Simplify right side
    303,776.81x = 109,289,776,994.51
  5. Step 5: Solve for x
    x = 109,289,776,994.51/303,776.81
  6. Step 6: Final answer
    x = 359,769.98

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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.