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Finding the Fourth Proportional to 284,802.44, 392,997.28 and 157,457.48

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Solution

The fourth proportional to 284,802.44, 392,997.28 and 157,457.48 is: 217,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,802.44 : 392,997.28 = 157,457.48 : x
  2. Step 2: Convert to fraction form
    284,802.44/392,997.28 = 157,457.48/x
  3. Step 3: Cross multiply
    284,802.44x = 392,997.28 × 157,457.48
  4. Step 4: Simplify right side
    284,802.44x = 61,880,361,355.65
  5. Step 5: Solve for x
    x = 61,880,361,355.65/284,802.44
  6. Step 6: Final answer
    x = 217,274.69

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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.