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Finding the Fourth Proportional to 308,541.12, 463,240 and 158,888.40

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Solution

The fourth proportional to 308,541.12, 463,240 and 158,888.40 is: 238,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,541.12 : 463,240 = 158,888.40 : x
  2. Step 2: Convert to fraction form
    308,541.12/463,240 = 158,888.40/x
  3. Step 3: Cross multiply
    308,541.12x = 463,240 × 158,888.40
  4. Step 4: Simplify right side
    308,541.12x = 73,603,462,416
  5. Step 5: Solve for x
    x = 73,603,462,416/308,541.12
  6. Step 6: Final answer
    x = 238,553.17

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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.