Home / 252,225.55-378,214.35-83,688.63

Finding the Fourth Proportional to 252,225.55, 378,214.35 and 83,688.63

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Solution

The fourth proportional to 252,225.55, 378,214.35 and 83,688.63 is: 125,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,225.55 : 378,214.35 = 83,688.63 : x
  2. Step 2: Convert to fraction form
    252,225.55/378,214.35 = 83,688.63/x
  3. Step 3: Cross multiply
    252,225.55x = 378,214.35 × 83,688.63
  4. Step 4: Simplify right side
    252,225.55x = 31,652,240,797.84
  5. Step 5: Solve for x
    x = 31,652,240,797.84/252,225.55
  6. Step 6: Final answer
    x = 125,491.81

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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.