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Finding the Fourth Proportional to 436,760.96, 602,681.28 and 245,840

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Solution

The fourth proportional to 436,760.96, 602,681.28 and 245,840 is: 339,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,760.96 : 602,681.28 = 245,840 : x
  2. Step 2: Convert to fraction form
    436,760.96/602,681.28 = 245,840/x
  3. Step 3: Cross multiply
    436,760.96x = 602,681.28 × 245,840
  4. Step 4: Simplify right side
    436,760.96x = 148,163,165,875.20
  5. Step 5: Solve for x
    x = 148,163,165,875.20/436,760.96
  6. Step 6: Final answer
    x = 339,231.71

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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.