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Finding the Fourth Proportional to 158,498, 238,043.16 and 139,529.36

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Solution

The fourth proportional to 158,498, 238,043.16 and 139,529.36 is: 209,554.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,498 : 238,043.16 = 139,529.36 : x
  2. Step 2: Convert to fraction form
    158,498/238,043.16 = 139,529.36/x
  3. Step 3: Cross multiply
    158,498x = 238,043.16 × 139,529.36
  4. Step 4: Simplify right side
    158,498x = 33,214,009,767.18
  5. Step 5: Solve for x
    x = 33,214,009,767.18/158,498
  6. Step 6: Final answer
    x = 209,554.76

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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.