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Finding the Fourth Proportional to 303,708.46, 456,030.89 and 256,938.10

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Solution

The fourth proportional to 303,708.46, 456,030.89 and 256,938.10 is: 385,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,708.46 : 456,030.89 = 256,938.10 : x
  2. Step 2: Convert to fraction form
    303,708.46/456,030.89 = 256,938.10/x
  3. Step 3: Cross multiply
    303,708.46x = 456,030.89 × 256,938.10
  4. Step 4: Simplify right side
    303,708.46x = 117,171,709,516.61
  5. Step 5: Solve for x
    x = 117,171,709,516.61/303,708.46
  6. Step 6: Final answer
    x = 385,803.24

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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.