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Finding the Fourth Proportional to 238,303.92, 328,864.86 and 130,881

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Solution

The fourth proportional to 238,303.92, 328,864.86 and 130,881 is: 180,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,303.92 : 328,864.86 = 130,881 : x
  2. Step 2: Convert to fraction form
    238,303.92/328,864.86 = 130,881/x
  3. Step 3: Cross multiply
    238,303.92x = 328,864.86 × 130,881
  4. Step 4: Simplify right side
    238,303.92x = 43,042,161,741.66
  5. Step 5: Solve for x
    x = 43,042,161,741.66/238,303.92
  6. Step 6: Final answer
    x = 180,618.77

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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.