Home / 275,461.16-380,139.38-152,961.64

Finding the Fourth Proportional to 275,461.16, 380,139.38 and 152,961.64

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Solution

The fourth proportional to 275,461.16, 380,139.38 and 152,961.64 is: 211,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,461.16 : 380,139.38 = 152,961.64 : x
  2. Step 2: Convert to fraction form
    275,461.16/380,139.38 = 152,961.64/x
  3. Step 3: Cross multiply
    275,461.16x = 380,139.38 × 152,961.64
  4. Step 4: Simplify right side
    275,461.16x = 58,146,742,993.38
  5. Step 5: Solve for x
    x = 58,146,742,993.38/275,461.16
  6. Step 6: Final answer
    x = 211,088.72

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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.