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Finding the Fourth Proportional to 303,520.88, 453,030.40 and 262,812.72

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Solution

The fourth proportional to 303,520.88, 453,030.40 and 262,812.72 is: 392,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,520.88 : 453,030.40 = 262,812.72 : x
  2. Step 2: Convert to fraction form
    303,520.88/453,030.40 = 262,812.72/x
  3. Step 3: Cross multiply
    303,520.88x = 453,030.40 × 262,812.72
  4. Step 4: Simplify right side
    303,520.88x = 119,062,151,666.69
  5. Step 5: Solve for x
    x = 119,062,151,666.69/303,520.88
  6. Step 6: Final answer
    x = 392,270.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.