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Finding the Fourth Proportional to 220,316, 304,036.08 and 130,892

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Solution

The fourth proportional to 220,316, 304,036.08 and 130,892 is: 180,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,316 : 304,036.08 = 130,892 : x
  2. Step 2: Convert to fraction form
    220,316/304,036.08 = 130,892/x
  3. Step 3: Cross multiply
    220,316x = 304,036.08 × 130,892
  4. Step 4: Simplify right side
    220,316x = 39,795,890,583.36
  5. Step 5: Solve for x
    x = 39,795,890,583.36/220,316
  6. Step 6: Final answer
    x = 180,630.96

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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.