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Finding the Fourth Proportional to 369,614.34, 509,605.43 and 308,448.81

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Solution

The fourth proportional to 369,614.34, 509,605.43 and 308,448.81 is: 425,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,614.34 : 509,605.43 = 308,448.81 : x
  2. Step 2: Convert to fraction form
    369,614.34/509,605.43 = 308,448.81/x
  3. Step 3: Cross multiply
    369,614.34x = 509,605.43 × 308,448.81
  4. Step 4: Simplify right side
    369,614.34x = 157,187,186,910.79
  5. Step 5: Solve for x
    x = 157,187,186,910.79/369,614.34
  6. Step 6: Final answer
    x = 425,273.51

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1.5x scale

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.