Home / 215,427.40-322,946.70-140,583.40

Finding the Fourth Proportional to 215,427.40, 322,946.70 and 140,583.40

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Solution

The fourth proportional to 215,427.40, 322,946.70 and 140,583.40 is: 210,748.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,427.40 : 322,946.70 = 140,583.40 : x
  2. Step 2: Convert to fraction form
    215,427.40/322,946.70 = 140,583.40/x
  3. Step 3: Cross multiply
    215,427.40x = 322,946.70 × 140,583.40
  4. Step 4: Simplify right side
    215,427.40x = 45,400,945,104.78
  5. Step 5: Solve for x
    x = 45,400,945,104.78/215,427.40
  6. Step 6: Final answer
    x = 210,748.24

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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.