Home / 156,430.40-215,998.24-144,489.44

Finding the Fourth Proportional to 156,430.40, 215,998.24 and 144,489.44

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Solution

The fourth proportional to 156,430.40, 215,998.24 and 144,489.44 is: 199,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,430.40 : 215,998.24 = 144,489.44 : x
  2. Step 2: Convert to fraction form
    156,430.40/215,998.24 = 144,489.44/x
  3. Step 3: Cross multiply
    156,430.40x = 215,998.24 × 144,489.44
  4. Step 4: Simplify right side
    156,430.40x = 31,209,464,738.59
  5. Step 5: Solve for x
    x = 31,209,464,738.59/156,430.40
  6. Step 6: Final answer
    x = 199,510.23

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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.