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Finding the Fourth Proportional to 560,637.81, 840,927.31 and 161,262.90

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Solution

The fourth proportional to 560,637.81, 840,927.31 and 161,262.90 is: 241,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,637.81 : 840,927.31 = 161,262.90 : x
  2. Step 2: Convert to fraction form
    560,637.81/840,927.31 = 161,262.90/x
  3. Step 3: Cross multiply
    560,637.81x = 840,927.31 × 161,262.90
  4. Step 4: Simplify right side
    560,637.81x = 135,610,376,699.80
  5. Step 5: Solve for x
    x = 135,610,376,699.80/560,637.81
  6. Step 6: Final answer
    x = 241,885.89

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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.