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Finding the Fourth Proportional to 308,746.94, 463,120.41 and 87,130.94

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Solution

The fourth proportional to 308,746.94, 463,120.41 and 87,130.94 is: 130,696.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,746.94 : 463,120.41 = 87,130.94 : x
  2. Step 2: Convert to fraction form
    308,746.94/463,120.41 = 87,130.94/x
  3. Step 3: Cross multiply
    308,746.94x = 463,120.41 × 87,130.94
  4. Step 4: Simplify right side
    308,746.94x = 40,352,116,656.49
  5. Step 5: Solve for x
    x = 40,352,116,656.49/308,746.94
  6. Step 6: Final answer
    x = 130,696.41

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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.