Home / 215,647.28-297,619.56-130,764.08

Finding the Fourth Proportional to 215,647.28, 297,619.56 and 130,764.08

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Solution

The fourth proportional to 215,647.28, 297,619.56 and 130,764.08 is: 180,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,647.28 : 297,619.56 = 130,764.08 : x
  2. Step 2: Convert to fraction form
    215,647.28/297,619.56 = 130,764.08/x
  3. Step 3: Cross multiply
    215,647.28x = 297,619.56 × 130,764.08
  4. Step 4: Simplify right side
    215,647.28x = 38,917,947,953.40
  5. Step 5: Solve for x
    x = 38,917,947,953.40/215,647.28
  6. Step 6: Final answer
    x = 180,470.39

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1.5x scale

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.