Home / 186,389.31-280,947.55-170,415.30

Finding the Fourth Proportional to 186,389.31, 280,947.55 and 170,415.30

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Solution

The fourth proportional to 186,389.31, 280,947.55 and 170,415.30 is: 256,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,389.31 : 280,947.55 = 170,415.30 : x
  2. Step 2: Convert to fraction form
    186,389.31/280,947.55 = 170,415.30/x
  3. Step 3: Cross multiply
    186,389.31x = 280,947.55 × 170,415.30
  4. Step 4: Simplify right side
    186,389.31x = 47,877,761,017.52
  5. Step 5: Solve for x
    x = 47,877,761,017.52/186,389.31
  6. Step 6: Final answer
    x = 256,869.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.