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Finding the Fourth Proportional to 308,746.44, 463,119.66 and 87,130.44

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Solution

The fourth proportional to 308,746.44, 463,119.66 and 87,130.44 is: 130,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,746.44 : 463,119.66 = 87,130.44 : x
  2. Step 2: Convert to fraction form
    308,746.44/463,119.66 = 87,130.44/x
  3. Step 3: Cross multiply
    308,746.44x = 463,119.66 × 87,130.44
  4. Step 4: Simplify right side
    308,746.44x = 40,351,819,748.45
  5. Step 5: Solve for x
    x = 40,351,819,748.45/308,746.44
  6. Step 6: Final answer
    x = 130,695.66

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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.