Home / 287,406.82-430,666.75-182,004.36

Finding the Fourth Proportional to 287,406.82, 430,666.75 and 182,004.36

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Solution

The fourth proportional to 287,406.82, 430,666.75 and 182,004.36 is: 272,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,406.82 : 430,666.75 = 182,004.36 : x
  2. Step 2: Convert to fraction form
    287,406.82/430,666.75 = 182,004.36/x
  3. Step 3: Cross multiply
    287,406.82x = 430,666.75 × 182,004.36
  4. Step 4: Simplify right side
    287,406.82x = 78,383,226,207.03
  5. Step 5: Solve for x
    x = 78,383,226,207.03/287,406.82
  6. Step 6: Final answer
    x = 272,725.70

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1.5x scale

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.