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Finding the Fourth Proportional to 421,592.99, 581,783.72 and 240,363.29

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Solution

The fourth proportional to 421,592.99, 581,783.72 and 240,363.29 is: 331,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,592.99 : 581,783.72 = 240,363.29 : x
  2. Step 2: Convert to fraction form
    421,592.99/581,783.72 = 240,363.29/x
  3. Step 3: Cross multiply
    421,592.99x = 581,783.72 × 240,363.29
  4. Step 4: Simplify right side
    421,592.99x = 139,839,444,896.90
  5. Step 5: Solve for x
    x = 139,839,444,896.90/421,592.99
  6. Step 6: Final answer
    x = 331,693.01

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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.