Home / 287,152.69-430,713.33-87,456.37

Finding the Fourth Proportional to 287,152.69, 430,713.33 and 87,456.37

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Solution

The fourth proportional to 287,152.69, 430,713.33 and 87,456.37 is: 131,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,152.69 : 430,713.33 = 87,456.37 : x
  2. Step 2: Convert to fraction form
    287,152.69/430,713.33 = 87,456.37/x
  3. Step 3: Cross multiply
    287,152.69x = 430,713.33 × 87,456.37
  4. Step 4: Simplify right side
    287,152.69x = 37,668,624,352.41
  5. Step 5: Solve for x
    x = 37,668,624,352.41/287,152.69
  6. Step 6: Final answer
    x = 131,179.77

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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.