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Finding the Fourth Proportional to 272,970.80, 376,689.96 and 152,105.84

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Solution

The fourth proportional to 272,970.80, 376,689.96 and 152,105.84 is: 209,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,970.80 : 376,689.96 = 152,105.84 : x
  2. Step 2: Convert to fraction form
    272,970.80/376,689.96 = 152,105.84/x
  3. Step 3: Cross multiply
    272,970.80x = 376,689.96 × 152,105.84
  4. Step 4: Simplify right side
    272,970.80x = 57,296,742,785.37
  5. Step 5: Solve for x
    x = 57,296,742,785.37/272,970.80
  6. Step 6: Final answer
    x = 209,900.63

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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.