Home / 272,228.70-408,426.12-139,202.40

Finding the Fourth Proportional to 272,228.70, 408,426.12 and 139,202.40

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Solution

The fourth proportional to 272,228.70, 408,426.12 and 139,202.40 is: 208,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,228.70 : 408,426.12 = 139,202.40 : x
  2. Step 2: Convert to fraction form
    272,228.70/408,426.12 = 139,202.40/x
  3. Step 3: Cross multiply
    272,228.70x = 408,426.12 × 139,202.40
  4. Step 4: Simplify right side
    272,228.70x = 56,853,896,126.69
  5. Step 5: Solve for x
    x = 56,853,896,126.69/272,228.70
  6. Step 6: Final answer
    x = 208,846.08

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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.