Home / 208,208.32-312,248.04-75,071.44

Finding the Fourth Proportional to 208,208.32, 312,248.04 and 75,071.44

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Solution

The fourth proportional to 208,208.32, 312,248.04 and 75,071.44 is: 112,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,208.32 : 312,248.04 = 75,071.44 : x
  2. Step 2: Convert to fraction form
    208,208.32/312,248.04 = 75,071.44/x
  3. Step 3: Cross multiply
    208,208.32x = 312,248.04 × 75,071.44
  4. Step 4: Simplify right side
    208,208.32x = 23,440,909,999.98
  5. Step 5: Solve for x
    x = 23,440,909,999.98/208,208.32
  6. Step 6: Final answer
    x = 112,583.93

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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.