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Finding the Fourth Proportional to 285,666.56, 428,513.49 and 235,653.92

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Solution

The fourth proportional to 285,666.56, 428,513.49 and 235,653.92 is: 353,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,666.56 : 428,513.49 = 235,653.92 : x
  2. Step 2: Convert to fraction form
    285,666.56/428,513.49 = 235,653.92/x
  3. Step 3: Cross multiply
    285,666.56x = 428,513.49 × 235,653.92
  4. Step 4: Simplify right side
    285,666.56x = 100,980,881,548.81
  5. Step 5: Solve for x
    x = 100,980,881,548.81/285,666.56
  6. Step 6: Final answer
    x = 353,492.14

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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.